• Shop
  • Ideas & resources
  • Explore More
  • Contact
  • Elephant Materials
  • Elephant Materials

Categories

  • Automotive
  • Electrical
  • Farm and Ranch
  • Fasteners
  • Hand Tools
  • Hardware
  • Heating and Cooling
  • Housewares
  • Lawn and Garden
  • Outdoor Living and Patio
  • Paint and Sundries
  • Pet and Wild Bird
  • Plumbing
  • Power Tools and Acc
  • Sporting Goods
  • Store and Office Supplies
  • Uncategorized
  • Shop
  • Ideas & Resources
  • Explore More
  • Contact Us
Home > Plumbing > Rough Plumbing Supplies > Water Heater Parts and Accessori > Pressure Relief Valves > Watts 100XL-150 Relief Valve, 3/4 in, 150 psi Operating, MNPT x FNPT, Brass Body
Watts SKU: 6857353

Watts 100XL-150 Relief Valve, 3/4 in, 150 psi Operating, MNPT x FNPT, Brass Body

$44.99

  • Body Material: Brass
  • Connection Type: MNPT x FNPT
  • Nominal Size: 3/4 in
  • Operating Pressure: 150 psi
  • Temperature Rating: 210 deg F
  • Model #: 100XL-150
  • UPC #: 098268007206
  • SKU: 6857353
Inquiry Now

    First and Last Name*

    Phone*

    Email*

    Additional Message

      Product Overview

      Product Details

      Used in water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 105,000 Btu/hr. Features a bronze body with NPT male inlet and NPT female outlet connections, unique thermostat with special thermo-bonded coating and a test lever. ASME rated and CSA listed. Temperature relief is 210 deg F (99 deg C), Pressure relief range is 75 to 150psi (5.2 to 10.3 bar).

      Item Specifications

      Body MaterialBrass
      Connection TypeMNPT x FNPT
      Nominal Size3/4 in
      Operating Pressure150 psi
      Temperature Rating210 deg F

      MORE DETAILS:

      • Application: For water heater and hot water storage tank

    Frequently Bought Together

    The gear you trust from the brands you know.

    Nibco T00250D Tubing Strap, 3/4 in Opening, CPVC

    Nibco T00250D Tubing Strap, 3/4 in Opening, CPVC

    ☆☆☆☆☆
    0 reviews
    $0.97
    Explore
    Taylor 75274192 Bathroom Scale, 400 lb Capacity, LCD Display, Metal Housing Material, Clear, 13.38 in OAW, 13.41 in OAD

    Taylor 75274192 Bathroom Scale, 400 lb Capacity, LCD Display, Metal Housing Material, Clear, 13.38 in OAW, 13.41 in OAD

    ☆☆☆☆☆
    0 reviews
    $38.85
    Explore
    SharkBite U860W50 Pipe Tubing, 1/2 in, Polyethylene, White, 50 ft L

    SharkBite U860W50 Pipe Tubing, 1/2 in, Polyethylene, White, 50 ft L

    ☆☆☆☆☆
    0 reviews
    $17.99
    Explore
    Streamline REF-1/8 Copper Tubing, 1/8 in OD, 50 ft L, Soft, Coil

    Streamline REF-1/8 Copper Tubing, 1/8 in OD, 50 ft L, Soft, Coil

    ☆☆☆☆☆
    0 reviews
    $1.39
    Explore
    Danco 35723B Faucet O-Ring, #6, 5/16 in ID x 7/16 in OD Dia, 1/16 in Thick, Buna-N

    Danco 35723B Faucet O-Ring, #6, 5/16 in ID x 7/16 in OD Dia, 1/16 in Thick, Buna-N

    ☆☆☆☆☆
    0 reviews
    $0.99
    Explore
    Anderson Metals 00560-05 Tube Sleeve, 5/16 in, Delrin

    Anderson Metals 00560-05 Tube Sleeve, 5/16 in, Delrin

    ☆☆☆☆☆
    0 reviews
    $0.49
    Explore
    Korky 2011BP Hinge Toilet Flapper, Chlorazone Rubber, Red

    Korky 2011BP Hinge Toilet Flapper, Chlorazone Rubber, Red

    ☆☆☆☆☆
    0 reviews
    $9.99
    Explore
    IPEX 035489 Elbow, 4 in, Socket, 45 deg Angle, PVC, White, SCH 40 Schedule, 220 psi Pressure

    IPEX 035489 Elbow, 4 in, Socket, 45 deg Angle, PVC, White, SCH 40 Schedule, 220 psi Pressure

    ☆☆☆☆☆
    0 reviews
    $14.99
    Explore
    Korky 2001BP Toilet Flapper, Chlorazone Rubber, Red, For: Brass and Plastic Flush Valves

    Korky 2001BP Toilet Flapper, Chlorazone Rubber, Red, For: Brass and Plastic Flush Valves

    ☆☆☆☆☆
    0 reviews
    $5.99
    Explore
    Delta Windemere Series 21996LF Kitchen Faucet with Side Sprayer, 1.8 gpm, 2-Handle, Plastic, Chrome Plated, Deck

    Delta Windemere Series 21996LF Kitchen Faucet with Side Sprayer, 1.8 gpm, 2-Handle, Plastic, Chrome Plated, Deck

    ☆☆☆☆☆
    0 reviews
    $79.99
    Explore
    American Standard Cadet Suite 9091512.295 Series Tub and Shower Faucet, Brushed Nickel, Adjustable Showerhead, 2 gpm Tub

    American Standard Cadet Suite 9091512.295 Series Tub and Shower Faucet, Brushed Nickel, Adjustable Showerhead, 2 gpm Tub

    ☆☆☆☆☆
    0 reviews
    $119.99
    Explore
    Anderson Metals 53774-12 Garden Hose Cap, 3/4 in, FGHT, Nylon

    Anderson Metals 53774-12 Garden Hose Cap, 3/4 in, FGHT, Nylon

    ☆☆☆☆☆
    0 reviews
    $1.35
    Explore

    Shop By Brands

    Products we think you’ll like.

    Air King
    AIR KING AMERICA
    ALEXANDRIA Moulding
    ALUF Plastics
    American Stairways
    Arrowhead Brass
    Audubon Park
    Briggs & Stratton
    Carpenter Air Tools
    Charlotte Pipe
    chicago metallic
    Cobra Anchors

    Products

    • Centurion CCL 4 Custom Color Label, 2-1/8 in W
    • PRICING LABEL WHITE 3/4X7/16IN
    • Duck 288120 Envelope, #5, Paper, Beige
    • PACKAGING TAPE M&S 48MM X 50M
    • Monarch 1136W2 Pricing Label, 5/8 in L, 3/4 in W
    • Duck 1139951 Packing Paper, 24 in L, 24 in W, White

    Categories

    • Hardware
    • Plumbing
    • Fasteners
    • Electrical
    • Power Tools and Acc
    • Hand Tools

    Brands

    • DEWALT
    • PROSOURCE
    • Milwaukee
    • National Hardware
    • Rust-Oleum
    • Weber

    Privacy & Use

    • Shipping & Delivery
    • Privacy Policy
    • Return Policy

    Copyright ©2026 Elephant Elephant Materials. All rights reserved.
    Don't get scammed by emails or websites pretending to be Elephant Materials.

    Connect With Elephant Materials

    instagram facebook