# (Or similar approved) materials **URL:** \ **Category:** NEC3 and NEC4 Contracts\ **Created:** [1 August 2022 16:31 UTC](https://reachback.builtintelligence.com/t/or-similar-approved-materials/18309 "2022-08-01T16:31:46Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Kris](https://dub1.discourse-cdn.com/flex013/user_avatar/reachback.builtintelligence.com/kris/32/240_2.png) [@Kris](https://reachback.builtintelligence.com/u/Kris)\ **Post date:** [1 August 2022 16:31 UTC](https://reachback.builtintelligence.com/t/or-similar-approved-materials/18309/1 "2022-08-01T16:31:46Z")
Currently working on a nec3 project working as a subcontractor for a principal contractor. The form of contract is option b The drawings details a certain type of hydro rake (or similar approved) in which we have found a cheaper product that meets the same performance criteria and this has been approved by the designers. The principal contractors has sent a instruction requesting the saving we have made on the cheaper product. Is this right? Surely this would be a saving made by ourselves (subcontractor) and we would apply for the rate in the B.O.Q Thanks in advance ---
**Author:** ![dave\_bates](https://dub1.discourse-cdn.com/flex013/user_avatar/reachback.builtintelligence.com/dave_bates/32/55_2.png) [@dave\_bates](https://reachback.builtintelligence.com/u/dave_bates)\ **Post date:** [2 August 2022 21:10 UTC](https://reachback.builtintelligence.com/t/or-similar-approved-materials/18309/2 "2022-08-02T21:10:35Z")
if the product satisfies the Works Information then there is no saving due to the principal contractor because there is no compensation event ---
**Author:** ![Kris](https://dub1.discourse-cdn.com/flex013/user_avatar/reachback.builtintelligence.com/kris/32/240_2.png) [@Kris](https://reachback.builtintelligence.com/u/Kris)\ **Post date:** [2 August 2022 23:21 UTC](https://reachback.builtintelligence.com/t/or-similar-approved-materials/18309/3 "2022-08-02T23:21:29Z")
Thanks for clarifying Dave