Indicating Hydrocarbon Trap for Air Compressors Back to: Indicating Hydrocarbon Trap for Air Compressors Indicating Hydrocarbon Trap for Air Compressors Product Code: 20636 Trap, Hydrocarbon, Indicating, 1/4" Brass Fittings Please call the sales team on 01494 563377 or email for pricing details Description Pass compressed air from an oil-filled air compressor through this trap, to remove oil vapors and mist. Indicator changes from pale pink to deep pink. Dimensions: 6″ x 1 3/4″ (15.2 x 4.4 cm)