Image Vent-Lock® Safety EZ Boss-Lock Cam & Groove Type H Dust Cap Markets Safe Hazardous Material Transfer Jump to Section Product Options Related Products Product Options Part Number Size Material RLH100EZ 1" 316 Stainless Steel RLH150EZ 1-1/2" 316 Stainless Steel RLH200EZ 2" 316 Stainless Steel RLH300EZ 3" 316 Stainless Steel ALH400EZ 3" Aluminium Related Products Image Vent-Lock® Safety Cam & Groove Handle Assemblies Image Vent-Lock® Safety Cam & Groove Type C Coupler x Hose Shank Image Vent-Lock® Safety Cam & Groove Type DC Dust Cap Image Vent-Lock® Safety Cam & Groove Type DP Dust Plug Image Vent-Lock® Safety EZ Boss-Lock Cam & Groove Type C Coupler x Hose Shank Image Vent-Lock® Safety EZ Boss-Lock Cam & Groove Type D Coupler x Female NPT