We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White plastic anti-siphon fill valve with metal and rubber components

Flushmate

Flushmate 93300719 Anti-Siphon Fill Valve

SKU CH-72HF-5ZWHQ

Anti-siphon fill valve prevents backflow in two-piece toilets using plastic, rubber and metal construction

  • Anti-siphon protection prevents backflow contamination
  • Durable plastic, rubber and metal construction resists corrosion
  • Designed for two-piece toilet installations
  • New condition ensures reliable performance out of the box
  • Model 93300719 identifies the exact replacement part

Anti-Siphon Fill Valve for Two-Piece Toilets

The Flushmate 93300719 is an anti-siphon fill valve built for two-piece toilet installations. It combines plastic, rubber and metal components to regulate tank refill after each flush. The valve prevents backflow into the potable water supply, making it suitable for residential and light commercial restrooms.

Fits Standard Two-Piece Tank Openings

This valve threads into the standard inlet opening found on most two-piece toilet tanks and connects to the existing supply line. No special tools or proprietary fittings are required for installation. The integrated anti-siphon design eliminates the need for a separate vacuum breaker, freeing space inside the tank for other repair parts.

Maintains Seal Under Continuous Pressure

The rubber sealing surfaces are engineered to hold a positive shut-off while the tank remains full between uses. Plastic and metal structural elements resist deformation from sustained water pressure and repeated cycling. The assembly continues to prevent siphonage even during extended periods of non-use or supply-pressure fluctuations.

Highlights

  • Anti-siphon protection prevents backflow contamination
  • Durable plastic, rubber and metal construction resists corrosion
  • Designed for two-piece toilet installations
  • New condition ensures reliable performance out of the box
  • Model 93300719 identifies the exact replacement part

Specifications

BrandFLUSHMATE

Questions about this item

What is the first limit you hit when the Flushmate 93300719 fill valve runs continuously?

The anti-siphon mechanism prevents backflow, so the practical limit is the water supply pressure and flow rate feeding the valve.

How much noise, heat or power does the Flushmate 93300719 produce during all-day operation?

It operates passively with water pressure alone, so it generates no heat, draws no power, and runs silently except for normal water flow sound.

What must already be in place for the Flushmate 93300719 to work?

A compatible two-piece toilet tank, a standard water supply line, and adequate inlet pressure are required for installation.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.