ARG Gunite Jet 10" 3/4" Air Venturi Tee | GJ103
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Brand and System Insights
ARG gunite venturi tees like GJ103 are used in custom spa systems to combine a 1.5" water feed with a 3/4" air line behind the shell. The venturi effect pulls air into the water stream before it reaches the jet bodies, creating the familiar bubbling, high-energy feel at the seats.
GJ103 is dimensionally similar to common CMP gunite power jet tees and is often used in those style systems when line sizes match. Because the tee becomes a buried structural component, verifying socket size, air line size, and venturi port style against the original is critical before install.
Warranty Information
Specific extended warranty terms for this ARG fitting are not published. Treat warranty as N/A beyond any standard manufacturer policy and the store's return terms. Keep your invoice and any pressure-test records with your job file.
Related Gunite Spa Parts
- ARG Gunite Jet 10" 1" Air Venturi Tee | GJ101
- ARG Gunite Wall Fitting — 1.5" (Gray) | GF015GR
- ARG Eyeball Return Fitting — 3/4" Eye x 1.5" MIP (Gray) | EFM015DGR
Pairing a new venturi tee with fresh wall fittings and eyeball inserts helps keep jet performance consistent and reduces the risk of chasing leaks behind finished surfaces later.
FAQs
Q: What plumbing sizes is GJ103 intended for?
A: It is intended for gunite spa systems using a 1.5" water line and a 3/4" air line feeding venturi jet bodies. Always confirm line size, schedule, and tee length against the existing part before purchase.
Q: Can I use GJ103 to replace a CMP power jet tee?
A: Only if the socket sizes, air connection, and venturi port style match your original CMP part. If any dimension or port location is different, treat the interchange as N/A and stay with the exact OEM specification.
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Description
Description
ARG Gunite Jet 10" 3/4" Air Venturi Tee | GJ103
10" ARG gunite spa venturi tee with 1.5" water and 3/4" air connections for jet loops. Durable in-shell body for long-term spa plumbing; verify layout before use. SKU GJ103.
Features
- 10" gunite spa venturi tee for mixing water and air behind the shell
- Configured for 1.5" water and 3/4" air lines used on many gunite spa jet loops
- Long body helps keep plumbing joints buried and supported in the gunite envelope
- Permanent solvent-weld fitting intended to be part of the structure, not a service coupling
- Often used where CMP-style power jet tees are specified when dimensions match
Description
The ARG Gunite Jet 10" 3/4" Air Venturi Tee (GJ103) is a structural gunite spa fitting that blends the water and air lines feeding your jets. The tee is designed for systems built around a 1.5" water socket and a 3/4" air connection, giving the venturi circuit a stable, in-shell body that stays buried once the spa is shot and finished. Installed with clean cuts, fresh primer, and proper cement, the tee helps prevent weeping joints behind the shell and supports consistent pressure to each jet body. It is commonly cross-referenced in applications that call for CMP power jet venturi tees, but exact interchange depends on matching socket size, air line size, and venturi port style to the original component.
Pro Tip
Lay out the entire jet loop on the ground first. Dry-fit all tees, measure offsets to each jet location, and mark every joint before gluing. After the glue cures, pressure-test the circuit to operating pressure or better, and only shoot gunite or backfill once the line holds without a slow drop.
Related Parts
Product Warranty
Product Warranty
We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:
- Pentair Warranty
- A&A (Pentair In-Floor) Warranty
- Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
- Paramount Warranty
- BlueSquare Warranty
- Hayward Warranty
- All Other Manufacturer Warranties
Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.
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