GilAir Plus, DL to STP Upgrade (factory only) Back Catalog number: 811-0945-01-R Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1501-01 Tubing, 3/8 in. ID x 36 in. long for Gilian 10i an Price on request 811-9925-01 Cyclone, GK4.162 -RASCAL Cyclone (9LPM Respirable- Price on request 811-9927-06 Cyclone, GK 2.69 25mm O-Ring Kit Price on request