Tube Holder Housing End, 1/2" for 6mm OD Back Catalog number: 800062 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 400253 Tube Holder, Clear Storage Box Price on request 200112 Tube Holder Housing, 7-10 x 150mm, 5/8", L255 Price on request 800138 Tube Holder Adapter for 5/8" Ends Price on request