JMTurbo Blue 4&rdquo; x 3&rdquo; Long Straight Silicone Hose Coupler Brand New Hose Length: 3"; Wall Thickness: 5mm Hose Inside Diameter: 3.5; Hose Outside Diameter: 3.7 4 layer polyester reinforced High temperature silicone hose Temperature Range: - 65F to + 350F Brand new, only one hose per order