Product Description
5 Layer fiberglass reinforced silicone so it will never collapse under vacuum. This is the highest quality silicone coupler you can buy. 1.25" leg on the 4" side, 1.5" leg on the 3" side.
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5 Layer fiberglass reinforced silicone so it will never collapse under vacuum. This is the highest quality silicone coupler you can buy. 1.25" leg on the 4" side, 1.5" leg on the 3" side.
