del37fittings Pneumatics PS221 headphones have a mass

PS221 headphones have a mass of 487 grams and the depth reaches 26 db noise reduction

The optimal complete solution for balloons and similar applications

low profile head prevents snagging while pulling through bulkheads

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del37fittings Pneumatics PS221 headphones have a massDEL fitting seals are designed to eliminate leakage due to scratches on the sealing surface, improper torquing, or poor finishes on tube ends, in high or low pressure applications. For use with AN, MS, and JIC 37 flared fittings, DEL fitting seals also reduce tube flare cracking by reducing torque needed, eliminating nose damage to the fitting, and allow reuse of hardware. Approved by NASA, SAE, Air Force, Army, Navy, and major aerospace contractors.