Fieldpiece GS334F 3-Port Analog Refrigerant Manifold Gauge Set — Sight Glass, Swappable Hose Holders, High‑Grip Knobs

Fieldpiece GS334F is a rugged 3-port analog refrigerant manifold gauge set with an integrated sight glass, swappable hose holders, and high‑grip knobs for dependable field diagnostics.

The GS334F delivers the familiar reliability of an analog manifold while adding practical details technicians ask for on service jobs. Built for HVACR pros who need straightforward, durable pressure readings and visual refrigerant verification, this set combines classic gauges, four refrigerant saturation rings, a sight glass for flow checks, and field‑smart ergonomics. It’s designed to handle day‑to‑day shop and service work without fragile extras that complicate repairs.

How accurate and versatile are the gauges for different refrigerants?

The GS334F includes four refrigerant saturation temperature rings to support common service refrigerants and lets you read pressures with analog clarity. The dial faces are laid out for quick interpretation, helping you match pressure to saturation temperatures amid routine diagnostics.

• Includes rings for R134A, R404A, R407C and R448A for broad compatibility.
• Classic 3‑port design handles low, high and service lines simultaneously.
• Easy rotating pressure marker for setpoint or reference marking in the field.

What does the sight glass show and when is it useful?

The integrated sight glass gives a direct visual of refrigerant flow and condition during charging, recovery, or leak checks. It’s a simple way to confirm liquid movement and detect bubbles or contamination without extra tools.

• Visible refrigerant flow for faster charging and recovery verification.
• Helps identify vapor or liquid presence at the service port instantly.
• Reduces guesswork when adjusting charge or flushing a line.

How durable and serviceable is the GS334F on job sites?

Fieldpiece built this manifold for the rigors of everyday HVACR service: rubberized housing protects against drops, high‑grip knobs allow gloved operation, and piston valves offer reliable control. Swappable hose holders and standard fittings mean you can adapt the manifold to different hoses or accessories quickly.

• Rubberized protective housing resists impact and abrasion in tough environments.
• Piston valves and high‑grip knobs allow precise pressure control with gloves on.
• Swappable hose holders accept standard 1/4" and optional 5/16" adapters.

How does the GS334F fit into a technician’s workflow?

This manifold is built to be a straightforward, dependable tool you reach for when you need clear pressure readings and a quick visual of refrigerant. It keeps setup simple, reduces steps during charging or evacuation, and integrates with common hoses and fittings for efficient transitions between tasks.

• Three ports let you monitor low, high and service ports at once for thorough diagnostics.
• Rotating pressure marker aids in tracking target pressures or recording measurements.
• Works with common refrigerant rings and hose sizes to minimize field swaps.

Who is this for? The Fieldpiece GS334F is aimed at HVACR technicians, service contractors, and facilities maintenance teams who prefer the reliability and simplicity of an analog manifold. If you want a field‑ready gauge set with a sight glass for quick refrigerant verification, durable controls, and the flexibility to swap hose holders, the GS334F offers a practical, no‑frills solution that performs on real jobsites.