Description Manuals Videos Articles Popular Accessories Clemco 21413 is an Apollo safety helmet replacement part for a 100 ft LP respirator hose with a 1/2" diameter. This hose is for the following low-pressure helmets: Apollo 20 LP Apollo 60 LP Apollo 600 LP Related Parts (3) Parts Included (3) Clemco Apollo 20 LP DLX Supplied-Air Respirat… #21299 $542.03 628 Clemco Apollo 60 LP Supplied Air Respirator w… #22081 $0.00 647 Clemco Apollo 600 LP Supplied Air Respirator … #24010 $542.03 687