Triple Canister Bracket for 3 Stage Big Blue Systems Bracket to be used with 10" and 20" Big Blue housings (fits all brands of housings) Heavy-duty steel construction with a durable, white powder-coated finish Housings mount to bracket using 5/16" x 1.5" lag bolts (not included) Works with any brand of housing, including Pentek, Watts, Aqua-Pure, Culligan, and more. Holds up to 3 Big Blue housings with ports opening to the sides