Skip to content
Shop Your Local Store Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted Authentic Brands

Dial 1/8 in. H Red Bronze Evaporative Cooler Float Valve

Automatically shuts off the water supply once your cooler pan is full, so you stop worrying about overflow.
Dial MPN 4178
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Dial item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →

About Product Overview

This Dial float valve keeps the water level in your evaporative cooler's pan right where it should be, shutting off the supply automatically once it's full. Made of bronze for long service life in wet, mineral-heavy conditions, it's built to handle the demands of industrial evaporative coolers without corroding or seizing up. The 1/8 inch end fits smaller supply lines, while the 3/8 inch end connects to the standard fitting, giving you flexibility on installation. A reliable fix if your current valve is sticking, leaking, or letting the pan overflow.

  • Material: Bronze
  • Color: Red
  • End 1 Diameter: 3/8 inch
  • End 2 Diameter: 1/8 inch
  • Compatibility: Industrial evaporative coolers
  • Packaging: Boxed

The Details Specifications

Brand Dial
Model / MPN 4178
UPC 026529417808
Weight Under 1 lb
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare