Hayward SPX1105Z4 - 1-1/2-Inch MPT by Barb Elbow Hose Adapter chemical These earplugs have a Noise

These earplugs have a Noise Reduction Rating (NRR) of 25 However

NIOSH approved against certain organic vapors and acid gases

These earplugs have a Noise Reduction Rating (NRR) of 29 dB

The best value you can find in a full facepiece

1+2015 and Military Ballistic MCEPS GL-PD 10-12 standards

Hayward SPX1105Z4 - 1-1/2-Inch MPT by Barb Elbow Hose Adapter chemical These earplugs have a NoiseHayward SPX1105Z4 1 1 2 Inch MPT by Barb Elbow Hose Adapter 1 12 inches elbow hose adapter Combination insert elbow replacement; fits Perflex EC65 series, EC40F kit extended cycle due. filter Accessory for Hayward pool pumps and filters; fits S240, S200, S160T, S245T and S190T, pro series sand filter Fits CL200 and CL220 series chemical feeders Weighs 8. 0 pounds