They have a built-in check valve that reduces spillage when withdrawing the nozzle from tank
NEC Article and Type 800 CMR
Water For Location Outdoor Reinforcement Not Reinforced Peristaltic Pump Compatible No Does Not Contain Does Not Impart Taste or Odors Resistance Properties Abrasion Resistant
Series 3M PELTOR
02 lb Standards UL/CSA Mounting Clip Fuse Speed Time Delay AC Max I
Milwaukee 49-66-0533 SHOCKWAVE Magnetic Nutsetter, 5/16 in, 2-9/16 in OAL, Hex, 1/4 in Shank, Impact Rated, 10 PK 483421 They have a built-in checkNutsetter, Measurement System Imperial, Fastening Size 5 16 in, Tool Insertion Size 1 4 in Hex, Overall Length 2 9 16 in, Impact Rated Impact Rated, Magnetized Tip Magnetized Tip, Finish Black Phosphate, Material Steel, Slide to Clean Not Slide to Clean, Number of Nutsetters Included 10, Tool Brand Milwaukee, Package Quantity 10. Overall Length 2 9 16" Drive Size 5 16" Shank Size 1 4 in Hex Shank Size 1 4 in Overall Nutsetter Length 2 9 16 in