3/4" Barbed End - Sac Valve Threads
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FATSAC 3/4" Barbed End - Sac Valve Threads
The FATSAC W737 is a high-quality ballast fitting precision-machined in-house at FATSAC's facility. Featuring a 3/4" barbed end on one side and proprietary sac valve threads with an O-ring on the other, this fitting is purpose-built for use with FatSac PRO X ballast bag systems. Because FATSAC machines all fittings in-house, they maintain complete control over tolerances and material quality — ensuring every fitting delivers an airtight seal that meets the demands of watersports ballast applications.
The W737 is the go-to fitting when you need a reliable, leak-free connection between your ballast hose and your Fat Sac. The 3/4" barb accepts standard hose for a secure grip, while the sac valve threads with O-ring seat firmly into the PRO X Fat Sac port when installed with all-purpose cement. This combination of barb and valve thread design allows both OEM builders and custom sac customers to integrate this fitting confidently into any ballast plumbing layout.
Key Features
- 3/4" barbed end for secure hose attachment and leak-free hose connections
- Sac valve threads with O-ring for an airtight seal at the bag port
- Designed to be screwed into PRO X Fat Sac using all-purpose cement
- Precision-machined in-house by FATSAC — proprietary design for consistent quality
- Compatible with OEM and custom sac ballast system builds
- California Prop 65 Warning: This product can expose you to chemicals including Diisononyl phthalate (DINP), which is known to the State of California to cause cancer
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