Water Efficient Products – India (WEP-I) is a publication for rating of products for sustainable plumbing in India. This publication is a product of joint effort of IPA and IAPMO-India. 2011 WEP-I was released by IPA President Mr. Sudhakaran Nair in Bengaluru on 2nd July 2011.

WEP-I is a set of recommendations for design, engineering, manufacturing, selection, installation and maintenance of water-efficient plumbing products for domestic and commercial applications in India. The use of WEP-I is intended to encourage use of water-efficient products, to incorporate and implement the latest technology and systems and provide uniformity in the performance of products.