logo
Quick Order
Sign in
  • Brands
  • Branch Locations
  • Showrooms
  • Promotions
Shop
  • Locations
  • Showrooms
  • Promotions
  • Create an Account
Customer Service
  • Contact Us
  • FAQs
  • Returns
  • Credit Application
  • Billtrust Payments
Corporate
  • About Us
  • Careers
  • Subsidiaries
Divisions
  • Plumbing
  • Fire & Fabrication
  • HVAC
  • Municipal
  • Waterworks
Stay Connected
  • Facebook
  • LinkedIn
  • Instagram
  • Youtube
Don’t miss exclusive updates, expert tips, and special offers. Join our email list and make sure you never miss out!
  • Subscribe Now
  • Newsletter Signup
©2025 Etna Supply Company. All Rights Reserved.
  • Privacy Policy
  • Terms of Use
  • Home/
  • Water Heater Accessories

Water Heater Accessories

Enhance your water heater's efficiency and longevity with essential accessories.
Expansion Tanks Image

Expansion Tanks

Water Heater Installation Kits Image

Water Heater Installation Kits

Water Heater Pans Image

Water Heater Pans

Water Heater Vents Image

Water Heater Vents

Condensate Neutralizing Kits Image

Condensate Neutralizing Kits

Water Heater Anode Rods Image

Water Heater Anode Rods

Water Heater Fittings Image

Water Heater Fittings

Water Heater Leak Detectors Image

Water Heater Leak Detectors

Water Heater Stands Image

Water Heater Stands

Flexible Water Connectors Image

Flexible Water Connectors

Tank Strapping & Supports Image

Tank Strapping & Supports

Tankless Valve Kits Image

Tankless Valve Kits

Water Heater Drain Valves Image

Water Heater Drain Valves

Brand

Nominal Size

End Style

Length

Width

Type

Height

Actuator Type

Pre-Pressure Rating

Color

Color/Finish

Thread Size

Fitting/Connector Type

Material

Connection Type

Connection Size

Showing 16 of 177 Results

ADEY CH1-03-01640-US

ADEY CH1-03-01640-US

PN: 590656
MPN: CH1-03-01640-US

What's the price?

Sign in or Register for Pricing and Inventory

ADEY CH1-03-01645-US

ADEY CH1-03-01645-US

PN: 590658
MPN: CH1-03-01645-US

What's the price?

Sign in or Register for Pricing and Inventory

ADEY FL1-03-02990

ADEY FL1-03-02990

PN: 543966
MPN: FL1-03-02990

What's the price?

Sign in or Register for Pricing and Inventory

PRESS TANKLESS WATER HEATER ACCESSO

PRESS TANKLESS WATER HEATER ACCESSO

PN: 665835

What's the price?

Sign in or Register for Pricing and Inventory

Webstone H-85443WPR

Webstone H-85443WPR

PN: 597347
UPC: 018394013025
MPN: H-85443WPR

What's the price?

Sign in or Register for Pricing and Inventory

Zilmet ZAFL2234

Zilmet ZAFL2234

PN: 761346
MPN: ZAFL2234

What's the price?

Sign in or Register for Pricing and Inventory

AMTROL EX30-PRO 435340

AMTROL EX30-PRO 435340

PN: 761205

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® 1200-L 390051

Amtrol® 1200-L 390051

PN: 619615
MPN: 1200L

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® 1400-L 391888

Amtrol® 1400-L 391888

PN: 624464
MPN: 1400-L

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® 392772 400-L Model

Amtrol® 392772 400-L Model

PN: 597579
MPN: 400-L

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® 600-L 391797

Amtrol® 600-L 391797

PN: 624477
MPN: 600-L

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® 800-L 391828

Amtrol® 800-L 391828

PN: 624462
MPN: 800-L

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Fire-X-Trol® FPT-12C

Amtrol® Fire-X-Trol® FPT-12C

PN: 46881
UPC: 642031588234
MPN: FPT-12C

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Fire-X-Trol® FPT-30VC

Amtrol® Fire-X-Trol® FPT-30VC

PN: 183918
UPC: 642031588265
MPN: FPT-30VC

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Fire-X-Trol® FPT-5C

Amtrol® Fire-X-Trol® FPT-5C

PN: 57614
UPC: 642031576170
MPN: FPT-5C

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® FT-109 389767

Amtrol® FT-109 389767

PN: 51433
UPC: 64203111419
MPN: FT-109

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® ST-1 398917

Amtrol® ST-1 398917

PN: 628795
MPN: ST-1

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® ST-180VC 391441

Amtrol® ST-180VC 391441

PN: 195260
MPN: ST-180VC

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® ST-20VC-DD

Amtrol® ST-20VC-DD

PN: 6259
MPN: ST-20VC-DD

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® ST-5C-DD 390414

Amtrol® ST-5C-DD 390414

PN: 51920
MPN: ST-5C-DD

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® T-12 390654

Amtrol® T-12 390654

PN: 566597
MPN: T-12

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® T-5 390517

Amtrol® T-5 390517

PN: 566594
UPC: 64203154849
MPN: T-5

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® 140N43 ST

Amtrol® Therm-X-Trol® 140N43 ST

PN: 50041
UPC: 642031395665
MPN: 140N43

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® 141N43 ST Series

Amtrol® Therm-X-Trol® 141N43 ST Series

PN: 50757
UPC: 642031395672
MPN: 141N43

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® 143N164 ST

Amtrol® Therm-X-Trol® 143N164 ST

PN: 48737
UPC: 642031395689
MPN: 143N164

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® 143N273 ST

Amtrol® Therm-X-Trol® 143N273 ST

PN: 51021
UPC: 642031395696
MPN: 143N273

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® 144N177 ST

Amtrol® Therm-X-Trol® 144N177 ST

PN: 454602
UPC: 642031395702
MPN: 144N177

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® 147N130 ST

Amtrol® Therm-X-Trol® 147N130 ST

PN: 55498
UPC: 642031395719
MPN: 147N130

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® 147N131

Amtrol® Therm-X-Trol® 147N131

PN: 175998
UPC: 642031395726
MPN: 147N131

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® 149-166 ST

Amtrol® Therm-X-Trol® 149-166 ST

PN: 649122
UPC: 642031633552
MPN: 149-166

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-130CL ST-C

Amtrol® Therm-X-Trol® ST-130CL ST-C

PN: 605570
UPC: 642031577948
MPN: ST-130CL

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-210VC-150 ST-C

Amtrol® Therm-X-Trol® ST-210VC-150 ST-C

PN: 536076
UPC: 642031138729
MPN: ST-210VC-150

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-35CL ST-CL

Amtrol® Therm-X-Trol® ST-35CL ST-CL

PN: 660679
UPC: 642031577863
MPN: ST-35CL

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-400CL ST-CL

Amtrol® Therm-X-Trol® ST-400CL ST-CL

PN: 580427
UPC: 642031577993
MPN: ST-400CL

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-447C-125 ST-440C

Amtrol® Therm-X-Trol® ST-447C-125 ST-440C

PN: 591010
UPC: 642031663399
MPN: ST-447C-125

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-447C-150

Amtrol® Therm-X-Trol® ST-447C-150

PN: 141983
UPC: 642031579942
MPN: ST-447C-150

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-448C-150 ST-440C

Amtrol® Therm-X-Trol® ST-448C-150 ST-440C

PN: 524370
UPC: 642031589903
MPN: ST-448C-150

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-449C-125 ST-440C

Amtrol® Therm-X-Trol® ST-449C-125 ST-440C

PN: 400547
UPC: 642031653994
MPN: ST-449C-125

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-50CL ST-CL

Amtrol® Therm-X-Trol® ST-50CL ST-CL

PN: 576149
UPC: 642031577887
MPN: ST-50CL

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® Therm-X-Trol® ST-85CL ST-CL

Amtrol® Therm-X-Trol® ST-85CL ST-CL

PN: 616977
UPC: 642031577917
MPN: ST-85CL

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-201 399579

Amtrol® WX-201 399579

PN: 28261
MPN: WX-201

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-202H 399591

Amtrol® WX-202H 399591

PN: 567769
MPN: WX-202H

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-202UG 399597

Amtrol® WX-202UG 399597

PN: 490152
MPN: WX-202UG

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-255 399646

Amtrol® WX-255 399646

PN: 470680
MPN: WX-255

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-404C 391344

Amtrol® WX-404C 391344

PN: 502658
MPN: WX-404C

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-449C 392151 WX-C

Amtrol® WX-449C 392151 WX-C

PN: 580548
MPN: WX-449C

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-450 391513

Amtrol® WX-450 391513

PN: 411935
MPN: WX-450C

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-451C 392325 WX-C

Amtrol® WX-451C 392325 WX-C

PN: 622086
MPN: WX-541C

What's the price?

Sign in or Register for Pricing and Inventory

Amtrol® WX-452C 392359

Amtrol® WX-452C 392359

PN: 214712
MPN: WX-452C

What's the price?

Sign in or Register for Pricing and Inventory

AO Smith® 100109594

AO Smith® 100109594

PN: 648731
UPC: 020363126056
MPN: 100109594

What's the price?

Sign in or Register for Pricing and Inventory

AO Smith® 100187888

AO Smith® 100187888

PN: 664814
UPC: 020363184490
MPN: 100187888

What's the price?

Sign in or Register for Pricing and Inventory

AO Smith® 100289340

AO Smith® 100289340

PN: 709085
UPC: 671650027107
MPN: 100289340

What's the price?

Sign in or Register for Pricing and Inventory

AO Smith® 9005973005

AO Smith® 9005973005

PN: 142802
UPC: 020363153199
MPN: 9005973005

What's the price?

Sign in or Register for Pricing and Inventory

AO Smith® 9007607005

AO Smith® 9007607005

PN: 484485
UPC: 020363170240
MPN: 9007607005

What's the price?

Sign in or Register for Pricing and Inventory

APCOM 100289339

APCOM 100289339

PN: 531401
UPC: 671650027084
MPN: 100289339

What's the price?

Sign in or Register for Pricing and Inventory

Camco 10082

Camco 10082

PN: 17494
UPC: 14717100823
MPN: 10082

What's the price?

Sign in or Register for Pricing and Inventory

ELBI DTS19 EXPANSION TANK

ELBI DTS19 EXPANSION TANK

PN: 441191
MPN: DTS19

What's the price?

Sign in or Register for Pricing and Inventory

ELM® 98

ELM® 98

PN: 28397
UPC: 671031002990
MPN: 98

What's the price?

Sign in or Register for Pricing and Inventory

ELM® DURAPA

ELM® DURAPA

PN: 120598
UPC: 671031002815
MPN: 99

What's the price?

Sign in or Register for Pricing and Inventory

Holdrite® Quick PAN™ QP-20-C

Holdrite® Quick PAN™ QP-20-C

PN: 124481
UPC: 671119011203
MPN: QP-20-C

What's the price?

Sign in or Register for Pricing and Inventory

1 - 60 of 177

Water Heater Accessories enhance the efficiency and longevity of your water heating system. This category includes essential components such as expansion tanks, temperature and pressure relief valves, insulation blankets, and replacement parts. Designed for optimal performance, these accessories ensure safety, energy savings, and reliable hot water supply for your home or business. Upgrade your system today for improved functionality.