Description
Overview
The iFJF 800M4 Vent Float Repair Kit is a precision replacement component for 1-inch 800QT series backflow prevention valves. Designed to restore proper vent float operation in irrigation and plumbing systems, this kit includes all necessary seals and components to rebuild your 800M4 backflow valve assembly. Compatible with OEM part numbers 0887715, 887715, and RK 800M4-FR-V1, it provides a cost-effective alternative to full valve replacement.
Key Features
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Exact Fit Replacement: Precision-molded to match the original 800M4 vent float specifications, ensuring a leak-free seal and reliable backflow prevention for irrigation systems.
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Complete Repair Kit: Includes all seals, gaskets, and float components needed for a full rebuild of the 800QT series 1-inch backflow valve vent assembly.
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Chemical-Resistant Materials: Constructed from durable elastomers that withstand chlorine, irrigation chemicals, fertilizers, and UV exposure for extended outdoor service life.
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Cost-Effective Rebuild: Save 60-80% compared to replacing the entire backflow preventer assembly. This repair kit pays for itself with a single use.
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Universal 1-Inch Compatibility: Works with 800QT, 800M4, and compatible 1-inch backflow preventer assemblies from major manufacturers including Febco and Watts.
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DIY-Friendly Install: Drop-in replacement design with no special tools required. Complete the repair in under 30 minutes with basic hand tools.
Compatibility
| Brand |
Model |
Size |
| Febco |
800M4 |
1" |
| Febco |
800QT |
1" |
| Watts |
800M4-FR |
1" |
Specifications
| Specification |
Value |
| OEM Part Numbers |
0887715, 887715, RK 800M4-FR-V1 |
| Valve Size |
1 inch |
| Valve Series |
800QT / 800M4 |
| Application |
Backflow Prevention Valve |
| Material |
Chemical-Resistant Elastomer |
| SKU |
FJ-TOOL155-800M4 |
Why Choose iFJF?
At iFJF Direct, we specialize in high-quality replacement parts backed by rigorous quality control. Each repair kit component is manufactured to meet or exceed OEM specifications, ensuring reliable backflow prevention performance. We stand behind every product with responsive customer support and a satisfaction guarantee. Backflow valve failure can contaminate your water supply — trust a properly engineered repair kit for this critical safety device.
Frequently Asked Questions
Q: Does this fit all 1-inch backflow valves?
A: This kit is specifically designed for Febco 800M4 and 800QT series 1-inch backflow prevention valves. It is also compatible with OEM part numbers 0887715 and 887715. Please verify your valve model before ordering.
Q: How do I know if my vent float needs replacement?
A: Common signs include water leaking from the vent, the valve failing annual backflow testing, or the float showing visible cracks or deterioration. If your backflow valve fails its annual test, the vent float is often the root cause.
Q: Is this a complete rebuild kit for the entire valve?
A: This is a vent float repair kit specifically. It includes all components needed to rebuild the vent float assembly — seals, gaskets, and the float itself. For a complete valve rebuild, additional kits may be needed.
Q: Do I need a licensed plumber to install this?
A: While many experienced DIYers can perform the repair, backflow prevention devices are part of your water safety system. We recommend having the valve professionally tested after repair to ensure compliance with local plumbing codes and to verify proper backflow prevention.
Q: How often should backflow valves be serviced?
A: Most municipalities require annual backflow testing. Internal components like the vent float typically need replacement every 3-5 years depending on water quality, chemical exposure, and frequency of use. A proactive replacement schedule prevents unexpected failures.
Package Includes
1 x 800M4 Vent Float Repair Kit for 1" Backflow Valve | Complete seals & components | Product support documentation
