Customer Portal

Contact Us

Tight Fill Adaptors & Caps

Proven, Reliable, Made-in-the-USA Hardware for Plumbing & Heating Installations

Scully Signal Company Unifil Tight Fill Adaptors Caps and Nozzle Connectors for fuel oil delivery.

Unifil® Adaptors, Caps & Nozzle Connectors

All-weather threaded adapters with a Unifil® opening, including the new Scul-Lock™ tamper proof locking cap.

Scully Signal Company Unifil tank accessories for fuel oil delivery.

Unifil® Delivery Systems Accessories

Plumbing and heating tools to install, remove, fill, and maintain piping and adapters efficiently.

Scully Signal Company Scul-Lock Cap for fuel oil delivery.

Scul-Lock™ – Locking Cap

A tamper-proof durable locking cap that will be harder to break through than any other one in the market.

No results found.

Related Products

No results found.

- Damon Obermiller, Production Manager, Bosselman Energy

“Scully has a great overfill system and the tech support is second-to-none when troubleshooting problems.”

- Tyler Hancock, Instrumentation & Industrial Sales, Petroleum Measurement Integrators, Ltd.

“Scully is a long-time industry leader with excellent products for cold northern Canadian temperatures, which have often led Scully/PMI to success over the competitors.”

- Keaton Leach, Shipping & Receiving Manager

“Scully products are easy for my team to install and easy for the truck drivers to use.”

- Reynaldo Vela, Trailer Shop Foreman, Alamo City Truck Service Inc.

“The Scully System is easy to install, and easy to diagnose when needed.”

- Scott Bollinger, Materials Manager, O'Day Equipment, LLC

“Unmatched quality, functional products, innovative thinking, made in the USA.”
Read All

Not sure what you’re looking for?
Talk to a specialist.

Our Applications and Technical Support Team can help provide the best solution for your specific needs in tank and tight fill applications.
Contact Us