Pipe Dies for Machine Die Heads, For Universal Die Heads Nos 504A/711/713/811A/815A/816/817/842, Alloy RH, 14 NPT no-checkout Added carbon layer helps filter

Pipe Dies for Machine Die Heads, For Universal Die Heads Nos 504A 711 713 811A 815A 816 817 842, Alloy RH, 14 NPT no checkout Added carbon layer helps filter Added carbon layer helps filter out nuisance levels of ozone and organic vapors (less than OSHA PEL) For most welding applications HandyStrap® with buckle allows mask to comfortably hang around neck when not in use Ventex® valve lets the hot air out faster so workers stay cooler The solid black color stays cleaner looking longer preventing pre mature disposal Cradle Technology™ uniformly contouring to patella allowing knee and knee pad to work as one unit Gel injected EVA foam padding is ideal for hard surfaces Neoprene split strap keeps knee pads comfortably in place Hard PE cap with slip resistant ridges