Vaculine Oval Door Basic Wall Inlet for MD Central Vacuum
- Product SKU: 651HA
- Category: Central Vacuum Parts & Accessories, MD Central Vacuum Attachment Kit
- Order within
Quick Summary
This oval door basic wall inlet is a low voltage replacement inlet for many central vacuum installations. It is used on MD central vacuum systems and also matches many older inlets used across several brands.
Available from Ace Vacuums, with help matching parts to your MD central vacuum system at our Fairfax and Leesburg, VA showrooms.
Quick Highlights
- Low voltage inlet only
- Oval door basic wall style
- Can install opening up or down
- Outer dimensions: 3-1/8 in x 4-7/8 in
- Replaces Hayden MFG 1500
- Available in almond or white
Product Overview
This basic oval door wall inlet is a common replacement for older central vacuum inlet covers. It has a smooth modern finish and is designed for low voltage connections only.
The inlet connects with two screws on the back for the low voltage wire and has two metal contact points inside the opening. It can be installed with the door opening upward or downward.
It is compatible with many central vacuum brands listed in the record, including MD central vacuum applications. A trim cover is available during checkout to help cover marks left on the wall from the previous inlet.
Key Features
- Low voltage design: This inlet is made for low voltage connections only and will not replace an electric valve.
- Common oval replacement: It replaces many long-used oval basic inlets found in homes across several central vacuum brands.
- Flexible door orientation: The inlet can be installed with the door opening up or opening down.
- Direct wire terminals: Low voltage wire connects to the two screws on the back of the inlet.
- Built-in contact points: Two slightly extruding metal contact points are located inside the inlet opening.
- Trim cover option: A trim cover is available during checkout to help cover wall marks around the old inlet.
MD Compatibility
This product is listed for MD (Modern Day) central vacuum systems. Fit can depend on your hose, inlet type and system age, so confirm your setup before ordering or call Ace Vacuums for help.
Available Options
| Color | Part Number |
|---|---|
| Almond | 651HA |
| White | 651HW |
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Vaculine |
| Product type | Oval basic wall inlet |
| Outer dimensions | 3-1/8 in by 4-7/8 in |
| Voltage type | Low voltage only |
| Installation | Door can open up or down |
| Replacement for | Hayden MFG 1500 |
| Possible model marking | HM-1500 |
| White part number | 651HW |
| Almond part number | 651HA |
| Compatibility note | Includes AirMaster, Modern Day, SilentMaster, Flo-Master, Beam, Nutone, Electrolux, Vacuflo, Kenmore and Eureka |
| Authorized Dealer | Ace Vacuums |
Best For
- Replacing a worn or leaking low voltage oval inlet
- Refreshing the wall inlet appearance on an MD central vacuum installation
- Matching older oval basic inlet openings
- Installations that need the door to open up or down
Not Ideal For
- Replacing an electric inlet with 110 volt connections
- Homes that need a rectangular inlet style instead
- Situations where inlet type is unknown and voltage style has not been confirmed
Why Buy from Ace Vacuums
When you purchase from Ace Vacuums, you receive:
- Central vacuum parts matched to your MD system
- Help choosing the right hose, tools and inlet parts
- Knowledgeable support before and after the sale
- Shipping or pickup at our Fairfax and Leesburg showrooms
Available Online & In-Store
The Vaculine Oval Door Basic Wall Inlet for MD Central Vacuum is available online and in-store through Ace Vacuums.
Visit Our Showrooms
- Fairfax, VA: 11110 Main St, Fairfax, VA 22030
- Leesburg, VA: 300 Fort Evans Rd NE, Leesburg, VA 20176
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
Quick Summary
This oval door basic wall inlet is a low voltage replacement inlet for many central vacuum installations. It is used on MD central vacuum systems and also matches many older inlets used across several brands.
Available from Ace Vacuums, with help matching parts to your MD central vacuum system at our Fairfax and Leesburg, VA showrooms.
Quick Highlights
- Low voltage inlet only
- Oval door basic wall style
- Can install opening up or down
- Outer dimensions: 3-1/8 in x 4-7/8 in
- Replaces Hayden MFG 1500
- Available in almond or white
Product Overview
This basic oval door wall inlet is a common replacement for older central vacuum inlet covers. It has a smooth modern finish and is designed for low voltage connections only.
The inlet connects with two screws on the back for the low voltage wire and has two metal contact points inside the opening. It can be installed with the door opening upward or downward.
It is compatible with many central vacuum brands listed in the record, including MD central vacuum applications. A trim cover is available during checkout to help cover marks left on the wall from the previous inlet.
Key Features
- Low voltage design: This inlet is made for low voltage connections only and will not replace an electric valve.
- Common oval replacement: It replaces many long-used oval basic inlets found in homes across several central vacuum brands.
- Flexible door orientation: The inlet can be installed with the door opening up or opening down.
- Direct wire terminals: Low voltage wire connects to the two screws on the back of the inlet.
- Built-in contact points: Two slightly extruding metal contact points are located inside the inlet opening.
- Trim cover option: A trim cover is available during checkout to help cover wall marks around the old inlet.
MD Compatibility
This product is listed for MD (Modern Day) central vacuum systems. Fit can depend on your hose, inlet type and system age, so confirm your setup before ordering or call Ace Vacuums for help.
Available Options
| Color | Part Number |
|---|---|
| Almond | 651HA |
| White | 651HW |
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Vaculine |
| Product type | Oval basic wall inlet |
| Outer dimensions | 3-1/8 in by 4-7/8 in |
| Voltage type | Low voltage only |
| Installation | Door can open up or down |
| Replacement for | Hayden MFG 1500 |
| Possible model marking | HM-1500 |
| White part number | 651HW |
| Almond part number | 651HA |
| Compatibility note | Includes AirMaster, Modern Day, SilentMaster, Flo-Master, Beam, Nutone, Electrolux, Vacuflo, Kenmore and Eureka |
| Authorized Dealer | Ace Vacuums |
Best For
- Replacing a worn or leaking low voltage oval inlet
- Refreshing the wall inlet appearance on an MD central vacuum installation
- Matching older oval basic inlet openings
- Installations that need the door to open up or down
Not Ideal For
- Replacing an electric inlet with 110 volt connections
- Homes that need a rectangular inlet style instead
- Situations where inlet type is unknown and voltage style has not been confirmed
Why Buy from Ace Vacuums
When you purchase from Ace Vacuums, you receive:
- Central vacuum parts matched to your MD system
- Help choosing the right hose, tools and inlet parts
- Knowledgeable support before and after the sale
- Shipping or pickup at our Fairfax and Leesburg showrooms
Available Online & In-Store
The Vaculine Oval Door Basic Wall Inlet for MD Central Vacuum is available online and in-store through Ace Vacuums.
Visit Our Showrooms
- Fairfax, VA: 11110 Main St, Fairfax, VA 22030
- Leesburg, VA: 300 Fort Evans Rd NE, Leesburg, VA 20176
Call 703-997-9292 (ext. 1 Fairfax, ext. 2 Leesburg).
Frequently Asked Questions
Is this inlet for low voltage or electric connections?
This is a low voltage inlet only. It has two screws on the back for the low voltage wire and two metal contact points inside the hole.
Can this replace an electric valve with two female holes on the face?
No. The record states that a low voltage valve will not replace an electric valve, even if it has the same shape.
What are the dimensions of this inlet?
The outer dimensions are 3-1/8 inches by 4-7/8 inches.
Can the door open either direction?
Yes. These inlets can be installed opening up or opening down.
What part numbers are available?
The listed part numbers are 651HA for almond and 651HW for white. MD part numbers may also include 651HI.
Will this fit my MD central vacuum?
It is sold for MD central vacuum parts pages, but fit depends on your inlet type. Confirm that you need a low voltage oval basic inlet and compare the dimensions and connection style before ordering if you are not sure.
What older inlet does this replace?
The record says it replaces Hayden MFG 1500 and valves may have model HM-1500.
Which other central vacuum brands are listed as compatible?
The compatibility note includes AirMaster, Modern Day, SilentMaster, Flo-Master, Beam, Nutone, Electrolux, Vacuflo, Kenmore and Eureka.
Visit Our Showrooms
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📍 AceVacuums Fairfax (DMV Hub)
Address: 11110 Main St, Fairfax, VA 22030
Landmark: Opposite Havertys Furniture Store
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📍 AceVacuums Leesburg
Address: 300 Fort Evans Rd NE, Suite 104, Leesburg, VA 20176
Landmark: Next to Home Depot in Leesburg
Best for: Ashburn, Sterling, Frederick MD, Loudoun County
Shipping, Return & Refund Policy
Shipping Policy
In-stock merchandise generally ships from our Leesburg, Virginia location within 3–5 business days. Processing time is separate from carrier transit time and is not a guaranteed delivery date. Weekends and holidays can affect timing. Special-order, backordered or unavailable items may take longer; contact us to confirm timing before purchase when a deadline matters.
Shipping options and charges are shown at checkout. After dispatch, follow the carrier's tracking updates. Weather, carrier delays, order verification and inventory confirmation may affect delivery. Inspect packages promptly and retain packaging if there is damage or an incorrect or missing item.
Returns and refunds
Eligible unused items have a 30-calendar-day return request window for refunds or exchanges, measured from delivery or in-store purchase. Return authorization is required. Final-sale exclusions, the 15% restocking fee for change-of-mind returns and shipping responsibilities are explained in our Return and Refund Policy. That policy is the governing source for return eligibility and fees.
For shipping or return help, email sales@acevacuums.com or call 703-997-9292.
30-Day Returns, Refunds and Exchanges
Updated September 27, 2026. Request a return for an eligible unused item within 30 calendar days of delivery (or purchase for items collected in store). Eligible returns may be refunded to the original payment method or exchanged, subject to availability. The same 30-day request window applies to both refunds and exchanges; there is no separate seven-day or 15-day refund deadline.
Eligibility and authorization
Items must be unused, clean, complete and in their original packaging with all accessories, manuals and proof of purchase. Contact sales@acevacuums.com or 703-997-9292 before sending anything back. Include your order number, item and reason for return. We will confirm eligibility, charges and return instructions. Unapproved or cash-on-delivery returns are not accepted.
Fees and shipping
For an approved change-of-mind return, a 15% restocking fee applies to the returned merchandise price. Original shipping charges are not refundable and the customer pays return shipping. These charges do not apply to an approved return caused by our shipping error or a damaged/defective item claim. Contact us first so we can arrange the appropriate remedy and shipping instructions. Do not assume a prepaid label is included.
Final-sale and excluded items
Air purifiers; discounted, clearance, trade-in, holiday-sale and price-matched purchases; gift cards; custom or special-order products; electrical parts; used or installed items; opened cleaning solutions; and used bags, filters, belts or other consumables are not eligible for change-of-mind returns. Other items clearly marked final sale at purchase are also excluded. An opened box alone does not disqualify an otherwise eligible unused, complete item, but consumables and cleaning solutions must remain unopened.
Damaged, defective, incorrect or missing items; recalls
Inspect your order promptly and contact us as soon as you discover a problem, with your order number and photos where helpful. Keep the packaging. Change-of-mind exclusions and deadlines do not remove applicable defect, warranty, recall or statutory rights. Warranty coverage requires evaluation under the manufacturer's terms; dealer status does not guarantee free repair. Recalled products must follow the manufacturer's recall process.
Refund timing and exchanges
After we receive and inspect the return, we will notify you of approval or the reason it cannot be accepted. Approved refunds are issued to the original payment method within 10 business days of approval; your bank may take additional time to post them. Contact us if more than 15 business days have passed since approval. Exchanges require authorization and replacement availability; any price difference and applicable charges will be explained before processing.
Applicable rights and earlier purchases
This policy applies to online and in-store purchases. We will honor more favorable written return terms provided with an earlier purchase. Applicable consumer rights remain unaffected. Where the European Union 14-day cancellation right applies, customers may cancel or return eligible orders within 14 days of receipt, subject to applicable legal exceptions, without giving a reason.
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