Protec PB325 Screw Bell Trombone Case Overview

The Protec PB325 PRO PAC is a molded-frame, soft-sided case designed specifically for cut and screw bell tenor trombones, including both straight and trigger setups. Built around Protec’s PRO PAC design legacy (introduced and patented in 1984), it combines a lightweight shock-absorbing structure with a weather-resistant 1680D ballistic nylon exterior, plus a modular interior system that lets you secure the tuning slide and bell braces with adjustable hook-and-loop foam blocks. A slide compartment stored beneath the bell section and a removable padded bell protector help keep the instrument stable during transport, while a large front pocket and built-in organizer support gigging and travel workflows.

Protec PB325 Trombone Case Specifications

• Instrument Compatibility: Cut and screw bell tenor trombone; accommodates straight and trigger trombones
• Maximum Bell Size: Up to 9 in (229 mm)
• Exterior Material: 1680D ballistic nylon
• Frame: Lightweight, shock-absorbing frame
• Interior: Plush velvet lining; modular foam blocks with hook-and-loop closures; removable padded bell protector
• Secure, Long-Lasting Zippers: Heavy-duty zippers with lockable main compartment pulls
• Spacious Front Pocket: Gusseted for extra storage - fits accessories, including a trombone stand
• Built-in Organizer: Located in the front pocket, featuring three pen holder sleeves and two zippered compartments for small essentials
• Scratch-Resistant Mouthpiece Holders: Dual molded holders designed for quiet, secure storage
• Slide Storage Compartment: Conveniently tucked beneath the bell section
• Removable Accessory Pouch: Netted pouch with a secure hook-and-loop closure for organizing smaller items
• Dimensions (Exterior, tuning slide end): 35.5 x 8 x 12 in (902 x 203 x 305 mm)
• Dimensions (Exterior, bell end): 35.5 x 6 x 8 in (902 x 152 x 203 mm)
• Weight: 5.95 lb (2.7 kg)

Condition 

Brand new with tags

Who the PB325 Screw Bell Trombone Case is For

The Protec PB325 is a protective transport case for musicians using a cut and screw bell tenor trombone who need secure fit, organized storage, and multiple carry options for frequent rehearsals, gigs, and travel. Its modular hook-and-loop foam block system is designed to stabilize the tuning slide and bell braces for a customized fit, and the slide section’s dedicated storage beneath the bell helps keep components separated and protected.

This model is a practical choice for serious students, working players, and doubling professionals who want a case that supports daily use: weather-resistant 1680D exterior, heavy-duty lockable zippers, protective rubber feet, and durable metal hardware. It is also backpack-ready via Protec BPSTRAP backpack straps (sold separately) for hands-free load-in and commuting.

Common Questions About the Protec PB325

Will the Protec PB325 fit both straight and F-attachment tenor trombones?

Yes. The PB325 is designed to accommodate both straight and trigger tenor trombones, using adjustable modular foam blocks to fine-tune the fit around the instrument.

What bell size does the PB325 support?

It accommodates screw bells up to 9 inches (229 mm).

How do you carry the PB325, and can it be used as a backpack?

It includes a padded handle wrap, reinforced rope handles, and an adjustable non-slip shoulder strap with metal clips. It is compatible with Protec BPSTRAP backpack straps (sold separately) for backpack carry.

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