FITS TWO (2) 20LB Steel Propane Tanks – Designed for a perfect fit on RVs, trailers, and other dual-tank setups. SIDE ACCESS PORT – Easily view and adjust your regulator without removing the cover INDIVIDUAL TOP ACCESS HATCHES – Quickly access each cylinder valve separately HEAVY-DUTY POLYPROPYLENE CONSTRUCTION – Weather-resistant, impact-resistant, and built to last CLEAN, LOW-PROFILE LOOK – Keeps your setup sleek and protected