8-branch Stainless Steel Radiant Heat Manifold Set w/ 1/2" PEX adapters
Brand: Rifeng
Part#: SSM108
In Stock
Usually ships: within 1 business days
1/2" PEX adapters are included by default. For other size adapters (free upgrade) make a note at checkout.

8-branch, Premium Radiant Heat Manifold Set with 1/2" PEX adapters (Supply and Return pair).
Pre-assembled, pressure tested and comes with everything shown on the picture, including 1/2" PEX manifold adapters.

SSM108 set is typical for radiant floor heating applications in areas with a total of 1800 - 2200 sq. ft of space, when used together with 1/2" PEX tubing (installed 9 - 12" on centers).

Complete list of components: (1) Supply side radiant heat manifold with (8) flow meters and (8) PEX tubing outlets - lower manifold w/ red shut-off valve.
Flow meters allow to monitor the flow of water in GPM (Gallons Per Minute) through every manifold's branch.

(1) Return side radiant heat manifold with (8) manual balancing valves and (8) PEX tubing outlets - upper manifold w/ blue shut-off valve.
Manual balancing valves allow to balance the radiant heating system and are used to regulate the flow of water through manifold's branches.

(2) 1" NPT isolation shut-off ball valves with 1/4-turn color coded handles and built-in replaceable thermometers (both F/C readings displayed).
Allow to service the system and monitor supply (incoming) and return (outgoing) water temperatures.

(1) Automatic air vent to eliminate air from the system.
Air vent are used to eliminate the air from the radiant heating system, prevent air traps and enhance overall performance.

(2) Drain/fill valves with 3/4" garden/drain hose connection and a cap.
Used to purge/fill the radiant heating system.

(2) Manifold mounting brackets with bolts.
Superior bracket design offsets the radiant heat manifolds from the wall and allows for easy access and fast installation.

(16) Compression-style adapters for 1/2" PEX tubing.

Other suggested components:
To pressure test the radiant heat manifolds, use a Pressure Testing Kit (SKU# TESTKIT).

  • Radiant floor heating systems:
  • Reinforced Concrete Slabs (4 - 6") - garages, warehouse, storage and manufacturing facilities);
  • Non-Reinforced Gypsym or Thermal Mass Slabs / Thin Slabs (up to 1-1/4") - radiant heating floors in residential construction;
  • Staple-up Systems: stapled to the bottom of the subfloor between joists - with or without heat transfer plates;
  • "Sandwich" Systems: installed between the subfloor and finished floor - with or without heat transfer plates.
  • Snow and ice melting systems:
  • Snow melting systems for driveways, walkways; roof deicing applications.
Read more

Technical Specifications:
  • Total number of PEX outlets: 16 (8 on supply and 8 on return manifold)
  • Distance ON (On Center) between outlets: 2"
  • Overall height when installed: 14.5"
  • Overall width when installed (with shut-off valves): 22.75"
  • Distance between supply and return manifolds: 8.25" OC.
  • Compatible with all types and brands of PEX tubing (Bow, Viega, Watts, Zurn, Everhot, Nibco, etc.)
Read more
Write a Review
Helpful? Yes 2 No
Verified Purchase
8 branch ss manifold
as good as rehau and half the price
By allan g. (from stoystown pA) on 10/07/2013
Helpful? Yes 1 No
Verified Purchase
8 Branch Radiant Manifold
Manifold is great quality, easy to install, plenty of room between nuts to tighten. Air eliminator is nice to have in that position. Temp gauges, although small, work great.
By Nick Rummel (from Morton, IL) on 10/29/2012
Ask a Question
Lots of these manifolds being sold online do not come with the adapters for the 1/2" pex runs which you need to buy around 4-6$ each. You website implies that these are included (all 16) but never explicitly states this. So are they included? If so this is a far better deal.
Helpful? Yes 1 No
All (16) PEX adapters are included. You can see this under the "List of components" and also in the product title "8-branch Stainless Steel Radiant Heat Manifold Set w/ 1/2" PEX adapters".
By PexUniverse Customer Service on 06/24/2016
I have seen and understand your answer regarding turning the supply side manifold upside down due to the flow meters. Is there any reason I should not turn the return side upside down to solve 50% of my tubing issue since my tubing runs are all above the level of the manifold?
Helpful? Yes 1 No
There's no restriction on installing the return manifold upside down. If that helps your installation, feel free to do so.
By PexUniverse Customer Service on 01/04/2016
Can I add actuators on each loop directly to the manifold to Zone out each of the loops?
Helpful? Yes No
By PexUniverse Customer Service on 10/28/2016
Can this manifold be used in an open loop system where it comes into contact with potable water?
Helpful? Yes No
No. SSM and BSM manifolds are for closed-loop radiant heating applications only and are not approved for potable water use. If you intend to use them on an open-loop system, you would have to isolate the manifold from the rest of the system using a heat exchanger.
By PexUniverse Customer Service on 10/13/2016
Helpful? Yes No
Yes, the flow can be adjusted for each branch individually by adjusting the manual balancing valves (white).
By PexUniverse Customer Service on 08/22/2016
Can you mount these manifolds upside down and not affect the flow valve and meters?
Helpful? Yes No
We do not recommend installing the manifold upside down mainly for the reason that flow meters will accumulate debris and will start malfunctioning over time. A better option is either to install the manifold outside the boiler room above the PEX lines (in a wall, covered with an access panel) or to install the manifold in a normal position as shown on the product picture and then route PEX tubing to the sides and then upwards.
By PexUniverse Customer Service on 10/05/2015
I have four runs of pex in my basement floor so assume I would need a four branch manifold for this section. I also have four runs of pex in my first floor. Will I need another 4 branch manifold for that floor and if so how ar they connected.
Helpful? Yes No
If you plan to have both floors as a single zone, controlled by a single thermostat, then a single 8-branch manifold (SSM108) is the right choice. If you plan to have the basement and first floor as separate zones, (2) SSM104 4-branch manifolds are a better choice, since they allow for independent control of each zone. A single 1" zone valve can be installed on manifold supply line right before the main shut-off. Basement and 1st floor zone valves are then wired to a zone control, such as Taco ZVC403 to zone 1 and 2 respectively. A single zone can be controlled with a 24V thermostat of your choice. You can refer to the ZVC403 manual for details.
By PexUniverse Customer Service on 08/17/2015
Is there a reason that I would want to choose a stainless manifold over a brass manifold?
Helpful? Yes No
There's no particular reason except that the brass version has a somewhat more heavily built manifold body. Otherwise, all the components and specifications are the same.
By PexUniverse Customer Service on 06/22/2015
Can supply and return inlet and outlet be reversed from left to right?
Helpful? Yes No
Yes, they can.
By PexUniverse Customer Service on 01/16/2014
Which side is supply one with flow meters
Helpful? Yes No
The supply manifold is always the one with flow meters and it is usually installed below the return manifold for easier air elimination.
By PexUniverse Customer Service on 03/04/2013

Related products