FatSac W736-SS 3/4" Quick Connect Suction Stop Sac Valve Fitting

The FatSac W736-SS is a 3/4" Quick Connect Suction Stop fitting with Sac Valve threads, designed for use in wakeboard and wakesurf boat ballast bag systems. This fitting provides a reliable, airtight connection between your FatSac ballast bag and your plumbing system, making it an essential component for both OEM and custom ballast installations.

The W736-SS features a male 3/4" quick connect on one end that is fully compatible with 3/4" Flow-Rite fittings, including the W740 (straight socket) and W742 (elbow socket), which are commonly found in auto-vent ballast systems. The built-in Suction Stop technology features cutouts that prevent the ballast bag from being sucked against the fitting and blocking flow during pump operation — a critical design element for efficient filling and draining.

Key Features:

• Suction Stop Technology — cutouts prevent bag material from blocking flow during pump operation
• Dual O-rings — provide a superior airtight seal to prevent leaks
• Compatible with Flow-Rite fittings — works with W740 and W742 quick connect sockets used in auto-vent systems
• Sac Valve threads — threads directly onto FatSac ballast bag valve ports
• In-house machined — proprietary FatSac fitting for consistent quality and precise fitment

FatSac fittings are machined in-house and proprietary to the brand, ensuring tight tolerances and compatibility across the full FatSac product line. Tip: If the quick connect cap becomes difficult to install over time, apply a small amount of O-ring grease to the O-rings to keep the fitting operating smoothly and extend seal life.