Tube Holder Kit, Quad Variable, 6 x 70mm Back Catalog number: 800231 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800497-1 Tube Breaker Kit, Blue, LFS-113 Price on request 800064-10 Tube Holder Housing End, 5/8", for 7-10mm (Packg of 10) Price on request 106SC Carbon Monoxide 1-50 ppm Gas Detector Tube, pk/10 Price on request