K-FLEX USA Duct Liner: 0.55 NRC, 35 ft Overall Lg, 48 in Overall Wd, 1.5 in Thick
The K-FLEX USA Duct Liner (0.55 NRC) is a sound-absorbing duct liner with a thickness of 1.5 in, overall length of 35 ft, and overall width of 48 in, rated for temperatures from -297°F to 300°F. As a K-FLEX USA…
SKU 3G-OTH-574120
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Product Description
The K-FLEX USA Duct Liner (0.55 NRC) is a sound-absorbing duct liner with a thickness of 1.5 in, overall length of 35 ft, and overall width of 48 in, rated for temperatures from -297°F to 300°F. As a K-FLEX USA product, it is designed for thermal and acoustic insulation in HVAC ductwork. 3G Electric interprets customer demand and delivers this genuine industrial product across 14 departments—including HVAC & refrigeration—with specialist depth in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is K-FLEX USA Duct Liner used for?
K-FLEX USA Duct Liner (0.55 NRC) is used for thermal and acoustic insulation in HVAC ductwork. It absorbs sound and reduces noise transmission in commercial and industrial air-handling systems, while also providing temperature resistance from -297°F to 300°F.
What are the specifications of K-FLEX USA Duct Liner 6RSKD148035-48?
The K-FLEX USA Duct Liner 6RSKD148035-48 has a thickness of 1.5 in, overall length of 35 ft, and overall width of 48 in. It offers a Noise Reduction Coefficient (NRC) of 0.55 and operates in temperatures from -297°F to 300°F.
Where to buy K-FLEX USA Duct Liner worldwide?
3G Electric supplies and delivers K-FLEX USA Duct Liner worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order reaches any international destination. Contact us for availability and lead time.
How to install K-FLEX USA Duct Liner?
Install K-FLEX USA Duct Liner by cutting it to size with a sharp knife, then applying adhesive to the duct interior. Press the liner firmly into place, ensuring all edges are sealed to prevent air leakage. Follow standard HVAC insulation practices for best acoustic and thermal performance.
K-FLEX USA Products
3G Electric supplies K-FLEX USA sound-absorbing duct liners. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









