Blackstone Fire Pit Accessories to Protect Your Patio
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Blackstone is best known for its flat top griddles, the outdoor cooktops that sit on a patio and cook everything from pancakes to smash burgers on one big steel surface. People searching for a Blackstone fire pit setup usually want the same thing a griddle owner wants: a way to cook or relax outdoors without leaving grease spots, ember burns or a worn gas line behind. The three accessories in this guide are made by other companies and sold as compatible with Blackstone cookers and fire pits, so we explain honestly what each one does and where the fit claims come from.
Two of them are under grill mats in different sizes, a 70 x 48 inch mat and a 79 x 39 inch mat, while the third is a 3-foot propane regulator hose that replaces the gas line between a tank and a low-pressure appliance.
Blackstone Fire Pit and Griddle Accessories Compared
| Model | Type | Size (per listing) | Heat or Pressure Rating | Blackstone Mention |
|---|---|---|---|---|
| LETITIN 70×48×0.02in Large Under Grill Mat | Under grill mat | 70 x 48 x 0.02 in. | Up to 2000°F | Named for 28 in. and 36 in. griddles |
| 3Ft Propane Regulator Hose Replacement | Propane regulator with hose | 36 in. long | 11″ W.C. outlet pressure, 250 psi max | Not listed |
| 79×39 inches Large Under Grill Mats | Under grill mat | 79 x 39 x 0.04 in. | Up to 2000°F | Named for Blackstone grills |
LETITIN 70×48×0.02in Large Under Grill Mat for Wide Griddle Setups

Letitin
LETITIN 70×48×0.02in Large Under Grill Mat, Double-Sided Fireproof BBQ Grill Mat, Waterproof Oilproof Deck Protector for Blackstone, Charcoal/Gas Grills, Fire Pits, Patio & Lawn
Price and specifications are read from the Amazon product page and can change.
LETITIN 70×48×0.02in Large Under Grill Mat
Best for: Covering the area under 28 or 36-inch griddles
Pros
- 70 x 48 inch coverage
- Rated to 2000°F
- Rinses clean with a hose
Cons
- Very thin, needs stakes in wind
- Spec sheet lists different dimensions
The LETITIN 70×48×0.02in Large Under Grill Mat is a large protective sheet that goes on the ground under a griddle, grill or portable fire pit. The listing says it fits Blackstone 28-inch and 36-inch flat top griddles and also works with gas grills, charcoal grills and portable fire pits. It has a fiberglass base with a food-grade silicone resin coating on both sides, which is why it is called double-sided, and the listing rates it for heat up to 2000°F so hot embers, sparks and spattering grease do not scorch a deck.
The surface is described as oil-proof and waterproof: you rinse it with a garden hose or wipe it with mild dish soap and let it air-dry. A wrap-around edge is meant to reduce curling. Two honest notes from the listing itself: at 0.02 inches it is very thin, so the brand recommends staking it down because it may shift in wind, and it warns against resting heavy grill legs on the edges where someone could trip. The spec sheet also lists 20 x 18 x 0.2 inches, which looks like a folded or packaged size rather than the open mat, so rely on the 70 x 48 inch figure in the title.
This mat suits a first-time griddle owner who wants a wide, roughly rectangular footprint that extends past the sides of a 28- or 36-inch cooker. If your setup is long and narrow instead, the 79 x 39 inch mat below may cover it better.
3Ft Propane Regulator Hose Replacement for Refreshing the Gas Line

Grill Ace
GrillAce 3Ft Propane Regulator Hose Replacement for LP Gas Grills
Price and specifications are read from the Amazon product page and can change.
3Ft Propane Regulator Hose Replacement
Best for: Replacing a worn low-pressure propane hose
Pros
- CSA certified
- Excess flow protection
- Three-layer hose
Cons
- Listing never names Blackstone
- Check fitting size before buying
The 3Ft Propane Regulator Hose Replacement from GrillAce is a regulator and hose in one. The regulator is the round part that attaches to the propane tank and lowers the tank pressure to a steady level the appliance can use; the listing gives an outlet pressure of 11 inches W.C. (water column), about 1/2 PSI, which is the low-pressure standard for many grills and fire pits. It is CSA certified and includes excess flow protection, meaning it is designed to shut off automatically when it detects abnormal flow.
The connection details are important. The listing says it connects to QCC-1/Type-1 propane tanks, has a 3/8-inch female flare fitting with a 5/8″-18UNF swivel nut, and uses a 5/16-inch diameter hose. The hose is made of three layers (PVC, nylon thread and rubber) and is 36 inches long. The listing names many grills, heaters, fire pits, stoves and lanterns as compatible but does not mention Blackstone specifically, so compare these fitting sizes with your own griddle or fire pit before buying rather than assuming a fit.
The listing also explains a simple leak check: brush soapy water onto the connection and watch for bubbles, which would signal a leak. This hose suits someone replacing a cracked, stiff or damaged line on a low-pressure propane appliance. It is not a mat, so it pairs with either of the other two picks rather than replacing them.
79×39 inches Large Under Grill Mats for Long Cooking Stations

Rumlick
rumlick 79×39 inches Large Under Grill Mats for Blackstone Outdoor Deck BBQ
Price and specifications are read from the Amazon product page and can change.
79×39 inches Large Under Grill Mats
Best for: Long griddle stations and larger fire pits
Pros
- 79 x 39 inch coverage
- Rated to 2000°F
- Foldable for storage
Cons
- Keep flames off the mat directly
- No staking advice in listing
The 79×39 inches Large Under Grill Mats from rumlick is a longer, narrower mat. The listing says it suits Blackstone grills and most family-sized grills. Like the LETITIN mat it is fiberglass with a heat-resistant coating on both sides, rated up to 2000°F, and it is meant to stop embers and hot grease from marking wood decks and pavers.
The silicone surface is oil-proof and waterproof, so you can hose off stuck-on grease or wipe it with a damp cloth. It is foldable for storage, and the listing suggests uses beyond the patio, such as camping fire protection, fireplace hearth protection and tailgating. It is listed at 0.04 inches thick and 2.35 kg. The brand notes that flames should not touch the mat directly if you want it to last, which is sensible for any fire pit mat.
This mat suits a griddle on a cart with side shelves, or a setup where you stand in front of the cooker and want protection along its length. The listing does not mention staking, so in windy spots you may still want to weigh down the corners.
How to Choose the Right Blackstone Fire Pit Accessory
Start by measuring the footprint of your griddle or fire pit, then add space on every side where grease or embers could land. A mat should reach past the cooker, not just fit under its legs. The LETITIN mat gives a wider 48-inch depth, while the rumlick mat gives a longer 79-inch run.
Think about the surface underneath. Wood decks and composite boards are the most sensitive to heat and stains, so a fireproof deck mat is most useful there. For a small fire pit, see our guide to a tabletop fire pit for small patios, which covers compact setups that may need a smaller protected area.
Check how the mat stays in place. Thin mats are light and easy to store but can move in wind. The LETITIN listing openly recommends stakes, which is good advice for any lightweight mat on a lawn. If you are planning a larger wood-burning setup, our look at a 27-inch fire pit explains how bigger fires change your spacing needs.
For the gas side, a regulator hose is only useful if the fittings match. Confirm the tank connection (QCC-1/Type-1), the 3/8-inch female flare end and the low-pressure rating against your appliance manual. Replace a hose that is cracked, brittle or fails the soapy water test, and never use a gas appliance with a known leak.
FAQ
Are these accessories made by Blackstone?
No. All three are made by other companies. The two mats are listed as compatible with Blackstone griddles and grills, while the propane hose listing does not mention Blackstone at all.
Which fire pit mat should I buy?
If you have a 28- or 36-inch griddle and want wide coverage, the LETITIN 70 x 48 inch mat is named for those sizes. If you want a longer strip of protection along a cooking station, the 79 x 39 inch rumlick mat is the better shape.
Can I put a fire pit directly on a fireproof deck mat?
Both mats are rated for heat up to 2000°F and are sold for use under fire pits, but the rumlick listing warns that fire should not touch the mat directly. Keep the flame inside the fire pit and let the mat catch embers and sparks.
How do I clean an under grill mat?
Both listings say you can rinse the mat with a garden hose or wipe it with mild soap or a damp cloth, then let it dry before storing.
How do I know if a propane regulator hose fits my appliance?
Compare the fittings. This hose connects to QCC-1/Type-1 tanks and ends in a 3/8-inch female flare fitting with a 5/8″-18UNF nut. It is a low-pressure regulator, so it suits appliances designed for that range.
How do I check a propane hose for leaks?
The hose listing describes the common soapy water test: apply soapy water to the connections with the gas on and look for growing bubbles. Bubbles mean a leak that needs fixing before use.
While durable mats and safe fuel lines keep your deck safe from scorching embers, complete outdoor warmth often requires combining different heating setups. Exploring our Patio Heater Guide will help you coordinate your fire feature with overhead warmth while maintaining safe clearances on sensitive flooring. Simple preventative steps ensure your backyard remains comfortable and undamaged through every cooking season.
Pairing a durable heat-resistant mat with proper clearance keeps your outdoor space spotless and ready for cooking. For arrangements that leave adequate space around active burners, review our Patio Set Picks to balance seating comfort with safety. Taking these precautions safeguards your deck surface while creating an inviting setup for evening fires.


