FLEXTECH Hose Reducer: 3 in_4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone
The FLEXTECH Hose Reducer (MPN R40-300/400) is a blue silicone SAE J20 heater hose reducer with a 3 in to 4 in hose inside diameter and 3 in hose length. It is constructed from silicone tube and cover materials…
SKU 3G-OTH-457298
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Product Description
The FLEXTECH Hose Reducer (MPN R40-300/400) is a blue silicone SAE J20 heater hose reducer with a 3 in to 4 in hose inside diameter and 3 in hose length. It is constructed from silicone tube and cover materials, rated for a temperature range of -65° to 350°F.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the FLEXTECH Hose Reducer R40-300/400 used for?
The FLEXTECH Hose Reducer R40-300/400 is a silicone SAE J20 heater hose reducer used to transition between 3 in and 4 in inside-diameter hoses in industrial heating, cooling, and fluid-handling systems. Its silicone construction withstands -65° to 350°F, making it suitable for engine and process applications.
What are the specifications of the FLEXTECH Hose Reducer R40-300/400?
The FLEXTECH Hose Reducer R40-300/400 has a 3 in to 4 in hose inside diameter, 3 in hose length, blue silicone tube and cover materials, and a temperature range of -65° to 350°F. It meets SAE J20 standards for heater hose performance.
Where to buy the FLEXTECH Hose Reducer R40-300/400 worldwide?
3G Electric supplies the FLEXTECH Hose Reducer R40-300/400 worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this silicone SAE J20 heater hose reducer.
How to install the FLEXTECH Hose Reducer R40-300/400?
To install the FLEXTECH Hose Reducer R40-300/400, ensure both hose ends are clean and dry. Slide the reducer over the smaller 3 in hose, then connect the larger 4 in hose. Use appropriate clamps on both ends, tightening to manufacturer torque specs. Avoid over-tightening to prevent silicone damage.
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3G Electric supplies FLEXTECH silicone sae j20 heater hose reducers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









