
Avalon A51-NF Wall-Mounted Bottle Filler, Chilled, ADA Compliant
By Avalon|SKU: A51-NF
Authorized Avalon dealer · Brand new, genuine, full manufacturer warranty
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Avalon A51-NF Wall-Mounted Bottle Filler
A cold, ADA compliant bottle filler that hangs on the wall
The A50 bottle fillers are not ADA compliant, and plenty of schools and public buildings need one that is. The Avalon A51-NF is Avalon's ADA compliant bottle filler: a stainless steel unit that hangs on the wall with a 15 inch tall bottle area, a touchless sensor, and a built-in drain.
It dispenses cold water through NSF-certified dual filtration, a UV-C LED sanitizes the water path, and a leak detection sensor and bottles-saved counter come standard. It stands just 11.22 inches off the wall.
Need a drinking fountain too? The Avalon A51 combines a fountain and bottle filler in one unit, or Avalon pairs the A51-NF side by side with its A51-OF wall fountain.
At a glance
MountingWall-hung, no cutout DispensingBottle filler WaterCold, filtered ADA compliantYes FiltrationNSF-certified dual stage Bottle area height15 in Unit size17.5 W x 39 H x 11.22 D in DrainBuilt in SterilizationUV-C LED FinishStainless steel Filter life1,500 gal or 6 months CertificationNSF, UL ListedWhat's built into the Avalon A51-NF

Avalon lists the A51-NF as ADA compliant.
Touchless sensorHands-free filling with no shared button.
2-stage NSF filtrationDual NSF-certified filters (A4FILTER and A5FILTER).
UV-C sanitizingA UV-C LED sanitizes the water path.
Leak detection sensorFlags a leak before it becomes a wet floor.
Bottles-saved counterDisplay tracks bottles saved and shows a filter reminder.
Where an ADA compliant bottle filler fits

Meets the ADA requirement for new and replacement units, and the counter gives sustainability programs a number to report.
Public and government buildingsAn accessible refill station for lobbies, libraries, and city facilities.
Healthcare and officesTouchless, filtered cold water in waiting rooms and corridors.
A51-NF vs. A51 vs. A50-SB-C
| A51-NF (this unit) | A51 | A50-SB-C | |
|---|---|---|---|
| Dispensing | Bottle filler | Fountain + bottle filler | Bottle filler |
| Mounting | Wall-hung | Wall-hung | On-wall, surface |
| Cold water | Yes | Yes | Yes, remote chiller |
| ADA compliant | Yes | Yes | No |
| Depth off the wall | 11.22 in | 19 in | 5.75 in |
| Price | $799.99 | $899.99 | $999.99 |
The A51-NF is the lowest priced ADA compliant cold bottle filler in the Avalon lineup.
Installing a wall-mounted bottle filler

- A solid wall for the mounting bracket, with the included installation hardware
- Water, drain, and power brought through the wall behind the unit, at the positions on Avalon's template
- A cold water supply line and a drain line behind the unit
- Grounded 110V outlet behind the unit, indoors only (no extension cords)
- Mount at the height Avalon's template and your local code call for to keep it ADA compliant
- Room for the unit to stand 11.22 in off the wall
A51-NF filters and upkeep
The A51-NF uses Avalon's NSF-certified dual filter set, models A4FILTER and A5FILTER. Each set lasts about 1,500 gallons or 6 months, and the display shows a replace-filter indicator when it is time.
The first set ships with the unit. After changing both filters, hold the filter reset button for 5 seconds to clear the indicator. When it is time, order the Avalon dual replacement filter set.
| Manufacturer | Avalon |
| Model | A51-NF |
| Type | Wall-mounted bottle filler with built-in drain |
| Unit dimensions | 17.5 in W x 39 in H x 11.22 in D |
| Bottle area | 7 in L x 4 in W x 15 in H |
| Mounting | Hangs on the wall, no wall cutout |
| Output | Cold filtered water |
| Filtration | 1. Sediment filter, NSF 42 2. Carbon block filter, NSF 42 and 53 Listed as A4FILTER and A5FILTER Replacement set: Avalon dual replacement filters |
| Filter life | 1,500 gallons or 6 months |
| Sterilization | UV-C LED |
| Dispensing | Touchless sensor |
| Smart features | Bottles-saved counter, replace-filter indicator, leak detection sensor |
| Tank material | 304 stainless steel |
| Finish | Stainless steel |
| ADA compliant | Yes |
| Certification | NSF, UL Listed |
| In the box | A51-NF bottle filler, sediment and carbon block filters, installation kit, use and care guide |
| Warranty | 1 year limited from Avalon (register within 30 days) |
Avalon A51-NF FAQs
Is the A51-NF ADA compliant?
Yes. Avalon lists the A51-NF as ADA compliant. Mount it at the height Avalon's template and your local code call for, and call us if you need help planning an accessible install.
How is it different from the A51?
The A51 is a drinking fountain and bottle filler in one unit. The A51-NF is the bottle filler only, so it costs $100 less and stands 11.22 in off the wall instead of 19 in.
Can I add a drinking fountain next to it?
Yes. Avalon pairs the A51-NF side by side with its A51-OF wall fountain for a bottle filler and fountain combination. Call us to quote the pair.
How is it different from the A50 bottle fillers?
The A50 and A50-SB are not ADA compliant, and they need the separate A50-CC chiller for cold water. The A51-NF is ADA compliant and dispenses cold water on its own.
Which filters does it use, and how often?
The A51-NF uses the same Avalon dual replacement filter set as the A50 and A51 (A4FILTER and A5FILTER). Replace both every 6 months or 1,500 gallons.
Does it need a wall cutout?
No. It hangs on the wall. The water line, drain, and power come through holes in the wall behind the unit.
Outfitting a school, gym, or building?
Talk to a real person about installation, quantities, and project pricing.
Call or text 706-702-2071Request a project quoteSchool pricingWarranty
- Avalon warrants its water coolers, bottle fillers, and chillers to the original purchaser against defects in materials or workmanship. Avalon will repair or replace a defective product, at its option, when the product was bought new from an authorized retailer.
- Coverage: Avalon products include a 1-year limited manufacturer's warranty from the original purchase date. The warranty ends early if the product is sold or transferred.
- Registration: Register your unit with Avalon within 30 days of purchase to activate the warranty on Avalon's product registration page. Keep your model number, order number, and purchase date.
- Troubleshooting first: Every claim starts with troubleshooting alongside Avalon's support team. If a part fixes the issue, Avalon provides that part at no cost. A replacement unit is considered only after parts and troubleshooting have been tried.
- Installation and labor: Installation, maintenance, and repairs are the purchaser's responsibility. Plumber or third-party labor and extra installation materials are not covered.
- Not covered: Damage from accidents, misuse, improper installation or maintenance, relocation, unauthorized repairs, or unsanitary conditions. Units must be plugged directly into a grounded wall outlet. Using an extension cord or surge protector voids the warranty.
- Shipping damage: Report any shipping damage within 30 days of purchase. Damage reported after 30 days is not eligible for a warranty claim.
- A valid serial number and proof of purchase may be required. Shipping costs to return a product for repair or replacement are the purchaser's responsibility, and a replacement unit carries the remaining warranty from the original purchase date.
- Please contact us before returning any product or submitting a warranty claim so we can review your situation and connect you with the right support.
Questions? Contact support@prowatersupply.com or call or text 706-702-2071.
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Ordering from Pro Water Supply
Shipping, returns and support for every product we sell.
Where does it ship from, and how long does delivery take?
Most units ship directly from the manufacturer's U.S. warehouse, and shipping is free on every product. The shipping box near the top of this page shows the estimated ship date and delivery window for this item, and you get tracking as soon as it ships. Larger units can ship by freight, and the carrier may call to set up delivery.
Do you charge sales tax?
Only on orders shipped to Georgia. Orders shipped anywhere else in the U.S. pay no sales tax at checkout. Schools, agencies and other tax-exempt buyers can send us their exemption before ordering and we will set it on the account.
What if it arrives damaged?
Inspect the shipment before you sign. If you see damage, note it on the delivery receipt, keep all packaging, and contact us within 48 hours with your order number and photos. We will work with you on parts, repair, replacement or a refund.
Can I return it?
Most items can be returned within 30 days of delivery if they are new, unused, uninstalled and in the original packaging. Contact us first so we can authorize the return and send instructions. Some items, like replacement filters and special orders, follow different brand terms. See our return policy for the full details.
How do warranty claims work?
Every unit is brand new and carries the full manufacturer warranty. If something goes wrong, call or text 706-702-2071 or email support with your order number and photos. We help you file the claim with the manufacturer so you are not doing it alone.
Can I get a quote for multiple units or a school or district?
Yes. Send us the quantities and site details through our project quote form, or see school and district pricing. We help with product selection, ADA layout, delivery planning and volume pricing.
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