Dimensions
Double 20 LB Cover size :27(L) x 12(W) x 17(H)inch/ (68.6cm x 30.5cm x 43cm). Fits 2 side-by-side 20-pound (9kg) / 5-gallon (18.9 L) double cylinder canister RV.
Double 30 LB Cover size: 27(L) x 12(W) x 22(H)inch /(68.6cm x 30.5cm x 55.5cm).Fits 2 side-by-side 30-pound (9kg) / 5-gallon (18.9 L) double cylinder canister RV.
Double 40 LB Cover size:27(L) x 12(W) x 31(H) inch/ (68.6cm x 30.5cm x 78.7cm).Double 40 LB Cover Fits 2 side-by-side 40-pound (18.1kg) / 10-gallon (37.9 L) double cylinder canister RV.