✨ Christmas Special: Get 35% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Get Your Watts D3803004ss Hydronic Manifold - 1 Inch 4 Branch - Stainless Steel (m-5) Essentials [bBQFn8jO]

$60.99 $195.99 -69%

Features & Benefits: Stainless steelIndividual circuit flow meter/balance valveCircuit isolation valveMounted on bracketProduct Overview:Enhance your radiant heating or snow melting system with this durable 1-inch stainless steel manifold featuri

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Get Your Watts D3803004ss Hydronic Manifold - 1 Inch 4 Branch - Stainless Steel (m-5) Essentials [bBQFn8jO]

Get Your Watts D3803004ss Hydronic Manifold - 1 Inch 4 Branch - Stainless Steel (m-5) Essentials [bBQFn8jO]

Features & Benefits: 

  • Stainless steel
  • Individual circuit flow meter/balance valve
  • Circuit isolation valve
  • Mounted on bracket

Product Overview:

Enhance your radiant heating or snow melting system with this durable 1-inch stainless steel manifold featuring 4 circuits. Constructed with heavy-walled stainless steel, it’s engineered to work seamlessly with water or water/glycol solutions. Each circuit is equipped with flow balancing valves and flow meters, ensuring precise control and easy adjustments. Sold in pre-mounted pairs, this manifold is built for reliability, supporting up to 87 psi and temperatures up to 167°F, making it ideal for demanding applications. Get a quality manifold that balances performance and durability.

Product Specifications:

Specifications
Body Material Stainless Steel
Branch Outlet Connection Size 3/4 IN
Branch Outlet Connection Type Male Threaded
Brand Watts
Buy American Act Compliant NO
EAN 840213030957
Lead Free Not In Scope
Maximum Operating Temperature-Fahrenheit 167
Maximum Trunk Flow Rate 12 GPM
Number Of Branches 4
Part Number 81001983
Series D38SS
Trunk Diameter 1 IN
Trunk Inlet Connection Size 1 IN
Trunk Inlet Connection Type Male Threaded
Trunk Outlet Connection Size 1 IN
Trunk Outlet Connection Type Male Threaded
Trunk Outlet Type Open
With Valves No

Technical Downloads:

What Our Customers Say

February 1, 2026

Absolutely no complaints!

It's a very well-made and reliable buy.

- Lainey B..

February 1, 2026

Absolutely no complaints!

This is a very reliable and sturdy product.

- Karsyn W..

February 1, 2026

Absolutely no complaints!

This is a very solid and effective tool.

- Zakai F..

Write a Review

You Might Also Like

Discover more great products from our collection.

Classic Cap | Navy Blue

Classic Cap | Navy Blue

(308)
$29.99 $95.99 -69%
St. Claire Quilted Throw

St. Claire Quilted Throw

(882)
$18.99 $60.99 -69%
Greek God Apollo Candle Mold

Greek God Apollo Candle Mold

(258)
$26.99 $86.99 -69%
Glacier 18 in LED ADA Bath

Glacier 18 in LED ADA Bath

(704)
$78.99 $252.99 -69%
PROXIMITY SWITCH

PROXIMITY SWITCH

(663)
$24.99 $79.99 -69%

Copyright 2026 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY