Model AP-20S Gas Detection Pump Kit Back Catalog number: 830-0001-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 401931-750-R SCR-PHIL PAN 4-20 X 3/4" Price on request 385-0095-01 IOM Sample accesory, sample holder Price on request 801980 Fixed Mount Assembly, for Gilian 5000Low Flow Ada Price on request