A cushioned P clamp measuring 31.8mm inside diameter, matched to AN18 hose. AN18 is an uncommon size that shows up on specialist high-volume plumbing, and finding correctly sized support for it is often harder than finding the hose itself. This clamp cradles the line in a cushion inside a metal band, holding it firmly against a mounting point without the edge cutting into the cover, and damping the vibration that large fluid-filled lines transmit. Mount to solid structure, keep spans between clamps short enough that the hose cannot move under acceleration and braking, and never compress a larger hose into an undersized clamp.