Pentair Tandem Filter Piping Kit, 3", Sch 40, 200 GPM | 147400

What This Part Is Used For
Pentair 147400 Tandem Filter Piping Kit connects two 3-inch filters into a single tandem bank. It supplies the hardware, fittings, gaskets and butterfly valves needed to plumb both tanks to a shared inlet and outlet, and is rated for flow up to 200 GPM.

Why This Part Matters
A tandem installation doubles filtration capacity without doubling the equipment pad, but only when the plumbing is matched to the filters. The factory kit ensures valve sizing, gasket fit and flow path are correct for the system. Improvised plumbing on a commercial filter bank risks leaks, unbalanced flow between tanks, and filtration that underperforms on both.

Key Features and Specifications

• Pentair manufacturer part number 147400
• Tandem piping kit for two 3-inch filters
• Schedule 40 PVC construction
• Rated to 200 GPM
• Designed for Triton TR100C-3 and TR140C-3 sand filters
• Includes hardware, fittings, gaskets and butterfly valves
• Genuine Pentair OEM kit

Installation and Fitment Guidance
Confirm your filter model and pipe size before ordering — 2-inch, 3-inch and 4-inch tandem kits use different part numbers. Pipe and filters are not included and are purchased separately; the kit supplies hardware, fittings, gaskets and butterfly valves only. This is a commercial installation item and is typically special order. Confirm by manufacturer part number before ordering.

Common Service Context
Specified when building or rebuilding a two-tank commercial filter bank, or when converting a single-filter system to tandem for additional capacity.