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The screw caps are made of polypropylene, providing the same coefficient of expansion as the compatible tubes. This along with a polypropylene inner lip ensures a leakproof seal, even at changing temperatures. The caps feature a long skirt and a super-fast thread design that allows them to be removed or sealed with a single turn. The caps are available with or with out a silicone o-ring and are available in a variety of colors. Tubes sold separately.
The screw caps are made of polypropylene, providing the same coefficient of expansion as the compatible tubes. This along with a polypropylene inner lip ensures a leakproof seal, even at changing temperatures. The caps feature a long skirt and a super-fast thread design that allows them to be removed or sealed with a single turn. The caps are available with or with out a silicone o-ring and are available in a variety of colors. Tubes sold separately.
| Color | natural, without O-Ring, gray, without O-Ring, blue, without O-Ring, green, without O-Ring, lilac, without O-Ring, orange, without O-Ring, red, without O-Ring, white, without O-Ring, yellow, without O-Ring, natural, with O-Ring, gray, with O-Ring, blue, with O-Ring, green, with O-Ring, lilac, with O-Ring, orange, with O-Ring, red, with O-Ring, white, with O-Ring, yellow, with O-Ring |
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