HydroLogic® BIGboy™ Replacement PVC Float Valve - 3/4in

Fill Your BIGboy Reservoir Unattended — Never Flood Again

The HydroLogic® BIGboy™ Replacement PVC Float Valve restores automatic water-level control to your BIGboy filtration system. This heavy-duty, non-corrosive PVC unit mounts as a standard bulkhead tank fitting with a 0.48in orifice valve, and its adjustable float lets you set the exact fill level for your reservoir or storage tank. Once set, it fills unattended and shuts off precisely at the target level — eliminating the risk of overflow and the need for manual monitoring. Built with NSF-approved PVC, 18-8 stainless steel hardware, and Santoprene® rubber replaceable seals for dependable long-term service.

Key Features & Benefits

• Adjustable water level — set the float to your exact desired fill level; the valve shuts off automatically when reached.
• NSF-approved PVC construction — food-safe, non-corrosive material suitable for potable and purified water contact.
• 18-8 stainless steel hardware — corrosion-resistant fasteners for long service life in wet environments.
• Santoprene® rubber seals — replaceable seals maintain a reliable, leak-free shutoff over many fill cycles.
• 0.48in orifice valve — adequate flow for efficient tank filling without excessive pressure drop across the float valve.
• Bulkhead tank mount — standard installation through tank wall for a clean, permanent installation.

Who Should Use This

HydroLogic BIGboy system owners who need to replace a worn or damaged float valve and restore automatic fill control to their filtration or storage reservoir.

Compatibility

For HydroLogic BIGboy™ systems. Bulkhead tank mount installation, 3/4in. NSF-approved PVC. Replacement seals available separately.

Frequently Asked Questions

Is this a direct replacement for the original BIGboy float valve?

Yes — this is the OEM HydroLogic replacement float valve designed specifically for the BIGboy system.

Can I adjust the water level after installation?

Yes — the float arm is adjustable, allowing you to set and reset the shutoff level without removing or replacing the valve.

Are the Santoprene seals field-replaceable?

Yes — the seals are designed to be replaced in the field without replacing the entire valve assembly.

Can this valve be used with non-BIGboy tanks?

The bulkhead mount design allows installation in any compatible tank wall, provided the cutout matches the valve's fitting size.