Per Supplier when this unit is packed full of dry ice, it should last approximates 18 days. If you need additional information please contact us at 1-800-Grainger. Thank you for using Grainger.com Ask & Answer.
Water Hammer Arrestor, Body Material Stainless Steel with Brass Adapter, Connection Type MNPT, Pipe Size 1/2 In., Factory Set Pressure 25 to 35 psi, Overall Height 4-5/16 In., Diameter 4-13/32 In., Max. Pressure 150 psi, Temp. Range 33 Degrees to 180 Degrees F
Air Volume Control for Deep Wells, Air Volume Control, Normally Open, Length 8-45/64 In., Width 1-3/8 In., Height 4-1/2 In., Float Material Plastic, For Use With Deep, Shallow, and Submersible Pumps, Body Material Thermoplastic, Compliance SDWA