Description Literature Accessories Description Hydronic manometer accessory kit includes 34 additional fittings and (2) ITT bell and gosset read out probes. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories TSI Alnor Hydronic Manometer HM675 $3,645.00 Was: Now: $3,280.50 In Stock More Info TSI Alnor Hydronic Manometer HM685 $4,400.00 Was: Now: $3,960.00 In Stock Add To Cart View More