DSR Silicone Joiners are different to most. There brighter in colour, there texture is softer & grippier to touch. DSR silicone hoses far exceed the quality of common hard in texture, pale in colour chinese silicone. DSR Silicone couplings are made from a german material, called Whacker 1410, that's imported to China & turned into the Silicone material you see here. Samco Silicone also use Whacker 1410.