Tube Holder O-Ring Kit Back Catalog number: 800238 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800681-1 Tube Breaker Kit, Black, LFS-113 Price on request 811-9964-50 Sorbent Tube, Microlite, 8X110, 500mg, 50/BX Price on request 811-9984-50 Sorbent Tube, Porapak-R 6X70, 70/35, 50/BX Price on request