Seal Comparisons
When two seal families could plausibly fix the same leak, these pages settle it: what each one actually does, where each wins, and the cases where you need both.
Bottom Sweep vs Drip Rail
They fix different leaks. A bottom sweep's flexible wipe closes the gap between the glass and the threshold — it stops water passing under the door. A drip rail's angled fin catches water sheeting down the outside face of the glass and drains it back inside —…
Magnetic Seal vs Bulb Seal
A magnetic seal is a matched pair that latches the door shut — best where the door meets a wall or inline panel squarely and you want a positive close. A bulb seal is a single compressible profile — best where the gap is uneven, because the hollow bulb squash…
U-Channel vs H-Jamb Shower Seal
A u-channel caps one glass edge — protection plus, on finned versions, a small seal for tight, even gaps up to about 3/16 inch. An h-jamb is built for the slot between a swinging door and an inline fixed panel: it grips the panel edge and throws a long flap a…
Frameless vs Framed Shower Door Seals
Frameless doors take press-on seals: a sized channel grips the bare glass edge, so everything is bought by glass thickness. Framed doors take slide-in inserts: vinyl strips that fit a slot in the metal rail, bought by slot width and profile shape — the glass …
Silicone vs PVC Shower Door Seals
Most stock shower door seals are PVC (vinyl): cheap, stiff enough to grip as a press-on channel, but prone to yellowing and hardening after a few years of UV, heat, and cleaners. Silicone stays flexible and clear far longer and shrugs off mold — but it is too…