Keep your Qwik-Fill watering system operating at full efficiency with this direct-fit replacement manifold. Designed for group 24 through 31 deep-cycle batteries, it drops into your existing system with no special tools and no modification required.
A cracked, warped, or degraded manifold body is one of the most common failure points in Qwik-Fill battery watering systems. When the manifold loses integrity, cells water unevenly, pressure relief stops working correctly, and you risk overwatering -- one of the leading causes of premature deep-cycle battery failure in RV and off-grid battery banks.
The Flow-Rite BM-100-RP is the factory-specified replacement manifold for the Qwik-Fill single-point watering system. It restores correct flow distribution across all cells and brings the pressure relief valve function back to spec, so every cell gets the right amount of water -- no more, no less.
Designed as an exact replacement for Flow-Rite Qwik-Fill manifolds on group 24, 27, and 31 deep-cycle batteries. No adapter fittings needed.
Integrated pressure relief valve prevents overfilling and protects cell plates from electrolyte displacement damage.
Multiple outlet ports distribute water evenly across all cells in a single fill operation -- consistent electrolyte levels in every cell.
Manifold body is molded from chemical-resistant polypropylene rated for repeated exposure to battery electrolyte (sulfuric acid solution).
If your existing Qwik-Fill manifold shows any of the following, it is time to replace it:
RV owners running flooded lead-acid house banks, golf cart battery packs, industrial fork truck batteries, and off-grid solar battery arrays all use Flow-Rite Qwik-Fill systems. This manifold replacement applies across all of those use cases as long as the battery group size is within the 24-31 range.
A single-point watering system is only as good as its manifold. Even small cracks allow pressure to equalize before all cells are filled, leaving some cells low and others overfilled. Over time, inconsistent electrolyte levels cause plate sulfation in low cells and acid stratification in overfilled ones -- both of which permanently reduce battery capacity. Replacing a worn manifold is one of the highest-value maintenance actions you can take for a flooded lead-acid bank.
The BM-100-RP manifold is designed for the Flow-Rite Qwik-Fill single-point battery watering product line. It is compatible with standard Qwik-Fill fill valve assemblies and interconnect tubing. If you are building out or repairing a full Qwik-Fill system, Flow-Rite also offers complete kits for 2-, 4-, 6-, and 8-battery configurations -- the BM-100-RP can serve as a service replacement within any of those kits.
Replacing the manifold requires no special tools. General process:
Note: Always wear appropriate eye protection and acid-resistant gloves when working near flooded lead-acid batteries. Disconnect chargers before servicing the watering system.