What do contractors on-site have to say about IPEX’s Kwikon ENT and fittings? Lightweight and flexible, Kwikon ENT is quick and easy to install reducing labour by up to 50%. Kwikon fittings can be encased in concrete, concealed in walls or ceilings, or in direct burial applications. Noncorroding and nonconducting IPEX electrical products are engineered for the rugged day-to-day challenges of the construction industry.