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  Shipping to Alaska, Hawaii, and International shipping to Canada extra. Please place the order and factory will advise of additional shipping amounts prior to shipping. 

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Expedited shipping available. Please call for pricing. 

3/8 Tubing Connectors

tubing connectors, hvac, air conditioning supplies, Retrozone

PUC 3/8 Straight Connector 

Straight, 3/8 2 port union connector to connect FR-12 and FR-25 3/8 OD tubing. 

Slip fit type union connectors with disconnect feature. Most often used on red valve connector of Flexdamper™ to connect 3/8 OD tubing. Pre-installed on all Flexdampers™ using 3/8 OD tubing, order extras only for spares and connecting cut lengths of 3/8 OD tubing. 

tubing connectors, hvac, air conditioning supplies, Retrozone

PUT 3/8 T Connector 

3/8 3 port union connector to connect FR-12 and FR-25 3/8 OD tubing. 

Slip fit type union connectors with disconnect feature. 

Use to daisy chain multiple Flexdampers™, or to create a manifold by the SPP panel. Very popular part when used with 3/8 OD tubing, order one for every damper plus a few spares.

tubing connectors, hvac, air conditioning supplies, Retrozone

PK 3/8 5 Port Manifold Connector 

3/8 5 port manifold reducing connector.

5 port manifold union connector, to connect FR12 and FR25 3/8 OD tubing.

Straight through ports are 3/8 OD and 3 branch ports are 3/8 OD. 

Slip fit type union connectors with disconnect feature.

Where to use: Primary use is at outlet of SPP panel to create manifold to connect FR12 or FR25 3/8 OD tubing to the 3/8 outlet tubing of SPP panel, when 3/8 OD tubing is being home run, to create a cleaner and neater field installation. Be sure to order 4 feet of 3/8 tubing for this purpose. P/N FR-5 . 

Popular part when used with 3/8 OD tubing for manifolding, when 3/8 tubing is being home run. Order one for every 3 dampers plus a few spares.

Union Connectors 

Reducing Tubing Connectors 

3/8 to 1/4

tubing connectors, hvac, air conditioning supplies, Retrozone

PG 3/8 to 1/4 inch 2 Port Reducing Connectors 

PG 3/8-1/4 Straight reducing connector 

Straight 2 port reducing union connector, to connect FR12 

and FR25 3/8 OD tubing to FR25 to FRS-25 1/4 OD tubing. 

Slip fit type union connectors with disconnect feature.

Most often used on red valve connector of Flexdamper to connect 1/4 OD tubing.

Pre-installed on all Flexdampers™ using 1/4 OD tubing, 

order extras only for spares and connecting lengths of 1/4 OD to 3/8 OD tubing.

tubing connectors, hvac, air conditioning supplies, Retrozone

PGT 3/8- 1/4 T 3 Port Reducing Connector 

3 port T union connector, to connect FR12 

and FR25 3/8 OD tubing to FRS-25 1/4 OD tubing. 

Straight through ports are 3/8 and branch port is 1/4. 

Slip fit type union connectors with disconnect feature.

Where to use: Primary use is at outlet of SPP panel to create manifold to connect FRS 1/4 OD smaller tubing to 3/8 outlet tubing of SPP panel, to allow less air restriction to individual 1/4 OD tubes. Be sure to order 5 feet of 3/8 tubing for this purpose, P/N FR-5 

Very popular part when used with 1/4 OD tubing, order one for every damper plus a few spares.

tubing connectors, hvac, air conditioning supplies, Retrozone

PK3 3/8-1/4 5 Port Reducing Connector 

3/8- 1/4 T 5 port manifold reducing connector.

5 port manifold union connector to connect FR12 and FR25 3/8 OD tubing to FRS-25 1/4 OD tubing.

Straight through ports are 3/8 and 3 branch ports are 1/4. 

Slip fit type union connectors with disconnect feature.

Where to use: Primary use is at outlet of SPP panel to create manifold to connect FRS 1/4 OD smaller tubing to 3/8 outlet tubing of SPP panel, to allow less air restriction to individual 1/4 OD tubes, and to create a cleaner field installation. Be sure to order 5 feet of 3/8 tubing for this purpose, P/N FR-5 

Popular part when used with 1/4 OD tubing for manifolding, order one for every 3 dampers plus a few spares.

1/4 inch Only Connectors

tubing connectors, hvac, air conditioning supplies, Retrozone

PUT 1/4 T 3 Port connector 

1/4 3 port union connector to connect FRS-25 1/4 OD tubing. 

Slip fit type union connectors with disconnect feature. 

Use to create a manifold by the SPP panel.

Very popular part when used with 1/4 OD tubing, order one for every damper plus a few spares.

tubing connectors, hvac, air conditioning supplies, Retrozone

PK 1/4 5 Port Manifold Connector 

1/4 5 port manifold reducing connector.

5 port manifold union connector to connect FRS25 1/4 OD tubing.

All ports are 1/4 inch.

Slip fit type union connectors with disconnect feature.

Where to use: Primary use is at outlet of SPP panel to create manifolds to connect FRS 1/4 OD home-run tubing, to create a cleaner and neater field installation. 

Popular part when used with 1/4 OD tubing for manifolding, when 1/4tubing is being home run. Order one for every 3 dampers plus a few spares. 1/4 inch T’s may also be used. 

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