› M1 Support Forum › ELK-WSV2 1″ NPT Limitation Tagged: ELK-WSV2 This topic has 1 reply, 2 voices, and was last updated February 3, 2022 at 9:26 pm by Brian. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts February 3, 2022 at 6:27 pm #5841 Yann Debonne Hi, The ELK-WSV2 electronic shut-off valve is great, but is limited to 1″ NPT pipe thread. Most of the homes we build have 1-1/2″ pipe. Does anyone know of an alternative electronic shutoff valve? Thanks, Yann February 3, 2022 at 9:26 pm #5842 Brian Greenfield’s ASV150 is 1-1/2″ NPT. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In