Home » 500′ Blue Air Hose Spool 500′ Blue Air Hose Spool Specifications General purpose air hose Hose is more flexible to handle than rubber 500' spool Available in 1/4", 3/8", 1/2", & 3/4" Description 500' x 1/4" 500' x 3/8" 500' x 1/2" 500' x 3/4" Item Number 50014B 50038B 50012B 50034B