U.S. Patent 7,896,296 and Canadian Patent 2,637,128;Reduces callbacks caused by sheet-rock installers piercing the tube;Provides 1" offset from mounting surface to bottom of tube;Secures to surface in any position;Unique V-shaped base easily adapts to engineered wood I-beam joists;Locking finger holds pipe securely in place;100% corrosion proof, impact resistant;Bulk ring-shank nails included (but not pre-loaded);Compatible with copper, PEX and CPVC