CLLOMAGY Oil Tank Gauge for 275 & 330 Gallon Vertical Tanks — 42-44 in Depth, Mechanical Corrosion-Resistant

CLLOMAGY Oil Tank Gauge is a direct-replacement float level gauge for 275 and 330‑gallon vertical diesel/heating oil tanks that restores accurate visual fuel-level readings without electrical wiring.

This mechanical fuel‑level gauge is built to fit the common Scully Scul‑Tel and Intelli‑Tank style openings and is intended for vertical tanks with depths around 42"–44" and 1-1/2" or 2" male NPT fittings. It replaces a faulty float gauge so you can stop guessing how much diesel or heating oil remains. Constructed from corrosion‑resistant steel with a thick UV‑stable plastic cap, the gauge is meant for outdoor or basement storage locations and promises straightforward installation and long service life.

How does this gauge give a reliable fuel reading?

The CLLOMAGY gauge uses a sealed float on a steel stem that rises and falls with tank fluid level, moving an internal indicator to show remaining volume. Because it is mechanical, it does not require power or electronics, eliminating failure modes tied to wiring or sensors.

• Sealed float design for consistent buoyancy in diesel and heating oil.
• Mechanical indicator visible at the cap for quick checks.
• Works without electrical connections—good for simple gravity tanks.
• Resists corrosion to keep readings stable over time.

Will this fit my 275 or 330‑gallon vertical tank?

This gauge is sized for standard vertical residential/commercial heating tanks with depths approximately 42–44 inches and accepts either 1-1/2" or 2" male NPT fittings. It is designed to match the mounting style of common Scully Scul‑Tel and Intelli‑Tank products.

• Compatible with 42"–44" tank depth typical to 275 and 330 gal models.
• Thread options: 1-1/2" and 2" male NPT for standard tank fittings.
• Intended as a direct replacement for Scully Scul‑Tel / Intelli‑Tank style gauges.
• Verify tank access orientation so the float can move freely inside.

How durable and weatherproof is the replacement gauge?

Materials are selected for long outdoor and basement use: the stem and housing are corrosion‑resistant steel, while the cap uses thick, UV‑stabilized plastic to resist cracking. The construction minimizes rust and mechanical wear so it holds accurate readings over seasons.

• Steel stem and housing for rust resistance and structural strength.
• Thick, UV‑resistant plastic cap to resist sun and cold exposure.
• Sealed float reduces internal contamination and sticking points.
• Suitable for both sheltered basements and unheated outdoor tanks.

How simple is installation and what should I watch for?

Installation requires inserting the float stem into the tank and screwing the gauge into the tank opening; alignment matters so the float moves freely and is not blocked by baffles, fill pipes, or tank ends. No special tools or wiring are needed for basic operation.

• Insert float shaft carefully to avoid contact with internal obstructions.
• Screw gauge into 1-1/2" or 2" male NPT tank thread until sealed.
• Ensure float aligns with the tank's long axis and not near the fill port.
• Verify free float movement before finalizing the installation.

Who is this for: The CLLOMAGY Oil Tank Gauge is geared toward homeowners, property managers, and technicians who maintain residential or light‑commercial heating oil and diesel storage in 275 or 330‑gallon vertical tanks. It’s a practical, cost‑effective swap for anyone with a failed or inaccurate mechanical gauge who wants a rugged, no‑power solution that fits Scully Scul‑Tel and Intelli‑Tank style connections. If you need an easy-to-install, corrosion‑resistant replacement gauge that provides visible, mechanical fuel‑level readings, this product is designed for your tank setup.