Quick decision: Match the mounting interface first, then measure the cross-section. Similar outer shapes are not evidence that two seals are interchangeable.
Decision question
Is this a window/door T-slot carrier or a garage-door T-end attachment?
Window/door T-slot
- A profile base slides into a T-slot/carrier.
- Used in door/window extrusions; base and body are separate identification dimensions.
Measure or record:
- T-base width
- neck width
- slot geometry
- body height/reach
Garage T-end
- One or two T-shaped attachment ends engage a garage-door bottom retainer.
- Channel count and end-to-end spacing are critical observations.
Measure or record:
- T-end geometry
- channel count
- end-to-end spacing
- laid-flat/body width
Stop rule
The shared letter “T” is terminology, not evidence of shared geometry or compatibility.
Profiles to inspect next
- T-slot bulb extrusion — interface: T-slot / slide-in base
- T-slot leaf / flap extrusion — interface: T-slot / slide-in base
- Double T-end with U/bulb body — interface: double-channel T-end retainer
- Single T-end bulb/body — interface: single-channel T-end retainer
How to verify your sample
Use the measurement guide for the geometry you can observe. If the mounting interface or a critical dimension differs, treat the profiles as different and stop before making a fit claim. Exact compatibility needs separate product- or application-specific evidence.
Provenance
- Source — Ultrafab, T-Slot Extruded Seals — https://www.ultrafab.com/product/t-slot-extruded-seals/ — supports: T-slot as an insertion/interface family for extruded bulb profiles in window applications.
- Source — Ultrafab, Custom Plastic Extrusions | Profiles & Seals — https://www.ultrafab.com/product/custom-extrusions/ — supports: Distinct profile/interface labels including T-slot, kerf-mounted, leaf and multi-hollow bulb.
- Source — Ultrafab, Extruded Leaf & Flap Seals — https://www.ultrafab.com/product/extruded-leaf-flap-seals/ — supports: Leaf/flap as a legitimate extruded weatherseal profile family for window/door compression/sliding contexts.
- Source — Ultrafab, Multi-Hollow Bulb Seals — https://www.ultrafab.com/product/multi-hollow-bulb-seals/ — supports: Hollow/multi-hollow bulb compression body; T-slot, kerf and adhesive-backed interface options.
- Source — Action Industries, Vinyl T-End Bulb Weather Seals — https://action-ind.com/pro-t-style-vinyl-bulb-garage-door-bottom-seal/ — supports: Garage bottom T-end attachment terminology and separation of attachment end from bulb body.
- Source — Action Direct, Garage Door Bottom Seal Attachment Types: T-End, Bead-End, P-Bulb, & More — https://shopactiondirect.com/blog/garage-door-bottom-seal-attachment-types/ — supports: Trade terminology for T-end, bead-end, P-bulb, single/double-channel and specialty attachment profiles; treated as terminology evidence, not universal compatibility.
This comparison uses the cited public sources and keeps terminology, observed geometry and exact fit as separate claims. The included schematic is original and intentionally generic.