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Updated: 2026-09-22 · 7 min read · Independent comparison
If you want a universal four-pack of silicone replacement bumpers that fits a wide range of air fryer trays including many Ultrean models, choose GXF Air Fryer Rubber; if you need bumpers built specifically for the Ultrean 9QT air fryer, choose GSZN Air Fryer Silicone.
• GXF Air Fryer Rubber — biggest strength: broad compatibility. The listing names Power XL, Ultrean, Chefman, GoWise, Dash and CROWNFUL, so one pack can cover several fryers in a household.
• GXF Air Fryer Rubber — biggest trade-off: you have to measure your original rubber tips before ordering, because the fit is a "most trays" claim rather than a single-model guarantee.
• GSZN Air Fryer Silicone — biggest strength: it is purpose-built for the Ultrean 9QT, so fit is the whole point of the product.
• GSZN Air Fryer Silicone — biggest trade-off: it is a one-model part. If your fryer is not an Ultrean 9QT, it is the wrong purchase.
• Who each pick is for: GXF for mixed-brand kitchens and anyone replacing worn feet on a fryer not named Ultrean; GSZN for Ultrean 9QT owners who want a part made for their exact basket.
GXF sells these as air fryer replacement parts first and model-specific parts second. Each bumper measures 0.39 × 0.39 × 0.08 inches, and the listing positions them as compatible with most air fryer trays for Chefman, Power XL, Dash, Emeril Lagasse and other brands, with Ultrean named in the title as well. In practice that means the part is sized to the generic metal tab found on a lot of crisper plates rather than machined for one basket.
The material is food-grade silicone, BPA free and odorless, rated heat resistant up to 480°F. That ceiling matters on paper because air fryer crisper plates sit directly in the hot airflow, and silicone that softens or smells under heat is the usual failure point on cheap replacement feet. The pack also leans into cost saving: the stated purpose is to stop metal-on-metal contact when you slide the grill plate in and out, which protects the nonstick coating inside the basket. If one bumper is lost or chewed up, you swap the single piece instead of replacing the whole tray.
Who should buy it: anyone whose fryer feet have gone hard, cracked or gone missing, especially if the fryer is not an Ultrean 9QT, or if you own more than one brand and want one spare pack that covers both. The four-piece set also gives you spares, which is genuinely useful because these are small parts that vanish into drawers.
GSZN Air Fryer Silicone: Who It's For
GSZN takes the opposite approach: one fryer, one part. The listing states plainly that these silicone rubber tabs are for the Ultrean 9QT air fryer, and it repeats that in the warm tips. There is no "fits most trays" hedging here — the model number is literally "Rubber Tabs for Ultrean 9QT Air Fryer." If that is your machine, the guesswork mostly disappears.
The silicone is described as an upgraded food-grade formula: non-slip, scratch-resistant, tough, and not easy to tear. Heat resistance is rated to 430°F / 221°C, which is lower than the GXF figure but still well above what a home air fryer basket reaches in normal cooking. Installation is the same idea as any of these parts — press the silicone pieces onto the tray tabs — and they come off for cleaning. You get four in the pack, matching the four tabs on a typical crisper plate.
Who should buy it: Ultrean 9QT owners, full stop. If your original rubber feet have hardened, torn or disappeared and you want replacements that were designed around your basket rather than around a range of baskets, this is the more targeted buy. The scratch protection claim is the same as GXF's: keep the metal tabs from grinding against the coated interior so the nonstick surface lasts longer. The listing also mentions a 12-hour response window if you have questions, which is a small but real service detail.
Who should skip it: anyone who does not own an Ultrean 9QT. It is not marketed as a universal part and should not be treated as one. If you have a Chefman, a Power XL, a Dash or a different-size Ultrean, this pack is the wrong shape of answer — look at the GXF option instead. And if maximum heat tolerance is your priority on paper, note the 430°F rating versus GXF's 480°F.
• Best for Ultrean 9QT owners → GSZN Air Fryer Silicone. It is built for that exact fryer, so fit is the design intent.
• Best for mixed-brand kitchens → GXF Air Fryer Rubber. One pack covers Power XL, Ultrean, Chefman, GoWise, Dash and CROWNFUL trays per the listing.
• Best if you have not measured your tray yet → GXF Air Fryer Rubber, but measure first. GXF's own instructions tell you to check your original tips before ordering.
• Best for the highest stated heat resistance → GXF Air Fryer Rubber at up to 480°F, versus 430°F for the GSZN set.
• Best for a single-model, no-guesswork replacement → GSZN Air Fryer Silicone. The model number names the fryer.
• Best for protecting the nonstick coating on any fryer → either one. Both exist to stop metal tabs scratching the basket interior.
• Best if you want spares on hand → either. Both ship as four-piece sets, and both are small enough to lose.
• Best for a non-Ultrean 9QT fryer → GXF Air Fryer Rubber. The GSZN part is not sold as a universal fit.
In my opinion, the deciding question here is not quality — both are food-grade silicone bumpers doing the same basic job — it is fit. If I owned an Ultrean 9QT air fryer, I would buy the GSZN Air Fryer Silicone, because buying a part made for your exact basket removes the one thing that goes wrong with these accessories: a bumper that does not seat properly and pops off mid-cook. It is the more confident purchase for that machine.
If I owned anything else, or more than one air fryer, I would buy the GXF Air Fryer Rubber. The wider compatibility list and the higher 480°F rating make it the more flexible four-pack, and the cost-saving angle — replacing one worn foot instead of a whole tray — is the reason these parts exist at all. Just measure your original tabs first, as GXF asks.
FAQ
how to use ultrean air fryer
Load food into the basket, set your time and temperature on the control panel and let the unit circulate hot air around the crisper plate. The rubber bumpers on that plate are what keep the metal tabs from grinding against the coated basket interior, so check they are seated before you cook.
how to preheat ultrean air fryer
how to clean ultrean air fryer
Let the basket cool, then pull the bumpers off the tray tabs for cleaning, which is how both GXF and GSZN describe the process. Wash the tray as usual and press the silicone pieces back on once everything is dry — silicone that is easy to remove and refit is the whole point of this design.
how to start ultrean air fryer
Plug in the unit, place the basket with its bumper-equipped crisper plate fully inside, then set time and temperature and start. If a bumper is missing or damaged, the tray can sit unevenly and the metal tabs can scratch the coating, so replace worn feet rather than cooking without them.
If you are still weighing the two, check the current price on Amazon for each and confirm which fryer you actually own before ordering — the model match is the only thing that really separates these two packs.
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See also: Linda's Essentials Reusable Round Silicone vs GXF Air Fryer Accessorie, Masgarlan Round Silicone Air vs GXF Air Fryer Accessories, LU2000 Egg Shape Airfryer vs GSZN Air Fryer Silicone