Pre-assembled, flexible watering manifold engineered for 8V US batteries (non-Trojan) with 2.5" cell spacing center-to-center. Drop the T-fittings into the valves and your single-point battery watering system is operational -- no cutting, no measuring individual cells.
The Flow-Rite BA-6FT-7A is a purpose-built manifold for the Pro-Fill single-point battery watering system. It is dimensioned specifically for 8V US-brand batteries (non-Trojan) where cell caps are spaced 2.5" center-to-center. The manifold length is 6 inches, sized to bridge the cells on a single 8V battery.
Valves come pre-installed on the manifold. Installation is straightforward: remove the existing vent caps, press the Pro-Fill valve T-fittings into each cell opening, snap the manifold into place, and connect it to the rest of your Pro-Fill tubing network. No permanent modifications to the battery are required.
The flexible construction lets the manifold conform to minor alignment differences between cells and batteries, reducing stress on the valve seats and fittings over the life of the system. Color coding -- black body, red accents -- follows the Pro-Fill system convention for quick visual identification during service checks.
Valves arrive mounted on the manifold -- no separate assembly step before install.
Matched precisely to 8V US battery cell cap center-to-center spacing for a secure fit.
Semi-flexible construction absorbs minor misalignment and reduces valve stress during installation.
Connects directly to Flow-Rite Pro-Fill tubing, fittings, and pump systems -- no adapters needed.
Deep-cycle flooded lead-acid batteries in RVs, golf carts, and floor scrubbers require regular water top-offs -- often every 1 to 4 weeks under heavy use. A Pro-Fill manifold system connects all cells to a single fill point, so you water an entire battery bank in seconds rather than uncapping and filling each of the 16 to 24 individual cells one by one. It also reduces the risk of overfilling, which dilutes electrolyte and shortens battery life.
This manifold is sized for US Battery brand 8V batteries, which use a 2.5" cell cap spacing. Trojan 8V batteries use a different cell spacing and require a different Flow-Rite manifold SKU. Do not mix manifolds between battery brands -- an incorrect spacing will prevent the valves from seating properly and can result in leaks or no-fill conditions.
The BA-6FT-7A manifold with valves is the per-battery component of a larger Pro-Fill installation. A complete system typically includes:
If you are outfitting a bank of four 8V US batteries, you need four of this manifold.
Pro-Fill manifold systems are designed exclusively for flooded (wet cell) lead-acid batteries. Do not use with sealed AGM, gel, or lithium batteries -- those types are maintenance-free and do not have accessible fill cells.