Best Compression Fitting Plugs in 2026

SUPERIOR PERFORMANCE: AquaAulos hydraulic fittings are made to the highest standards, with our JIC cap and plug kit meeting or exceeding SAE J514 conventions. These industrial heavy-duty JIC fittings are made from premium carbon steel galvanized with robust and long-lasting zinc, which prevents rust, corrosion, and degradation, even with extended use. Over time these fittings are exposed to hose fluid, so this durability is essential. You can trust our products like any leading brands, such as Parker, Eaton Aeroquip, or Gates, as they have been rigorously tested and meet the industry standards for pressure, temperature, and material strength!

PRECISION-ENGINEERED: We understand the importance of heavy-duty craftsmanship, which is exactly what we strive for in every piece in this kit. Our state-of-the-art CNC machine provides ultra-precise production, ensuring that the caps and plugs are made with fine-tolerance thread with good sealing for easy, repeated installation and removal. This extra attention to the manufacturing process enhances the adapter's performance. It provides customers with a competitive advantage through less downtime and extended equipment life, leading to increased revenues and reduced warranty costs.

AVOID COSTLY DOWNTIME: The perfect caps and plugs kit for the mechanic in you. These JIC kits seal and protect the ends of hydraulic hose and tube fittings to prevent hydraulic liquids from leaking onto the ground or into your or your client's machine. While you perform preventive maintenance, it also stops contaminants such as dirt, dust, moisture, and sand from entering and damaging your machine's sensitive and expensive parts, such as Pumps Motors, Valves, and Cylinders.

【Product Name】Straight Push-in Connect Fittings

【Material】Copper and Plastic

【Size】1/4" Tube OD x 1/8" NPT Thread，Notice - NPT Thread Size is a Nominal Pipe Size, and it Does Not represent the actual diameter

【Product Name】Elbow and Straight Push-in Connect Fittings

【Material】Copper and Plastic

【Size】1/4" Tube OD x 1/4" NPT Thread，Notice - NPT Thread Size is a Nominal Pipe Size, and it Does Not represent the actual diameter

Hex plug with SAE 45-degree flare male end terminates tube size fitting

Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability

For use with LP and natural gas, refrigeration, and hydraulic applications

Three piece construction - nut, sleeve and body with attached insert

Use with copper, brass, aluminum, or plastic tubing

Standard fittings use short nuts

Size & Material: 1/2 inch and qualified PVC,seal gaskets is 4mm thick;please note locking nut is reversed threaded.

How to Install: the PVC Bulkhead Fitting is drill 1-3/8 inch or 1-1/2 inch hole to instal. Assemble the bulkhead and hose adapter together.

Durable: will not crack, fade, or peel.The bulkhead fitting with a thick silicone seal gasket will creates a better tight seal.

【Size Information】: The double threaded bulkhead fittings are 1 inch G male and 1 inch G female thread(Bulkhead OD: 44.6mm).

【Included】2Pcs bulkhead adapter and 2Pcs plugs.

【Durable】:Material:ABS.This bulkhead fittings will not fade, crack, or peel.

SHARKBITE BRASS PUSH STOP VALVE COMPRESSION ADAPTER: This push-to-connect fitting allows you to connect 1/4 inch (3/8 inch OD) PEX pipe to fixtures and appliances like faucets, refrigerators, and humidifiers that require a 3/8 inch compression connection

COMPATIBILITY: This brass compression adapter is compatible with 1/4 inch (3/8 inch OD) PEX pipe; ideal for working in tight spaces

EASY TO INSTALL: The SharkBite brass push-fit compression connector allows for quick and easy installation, with no tools, crimping, glue, or soldering required; can be installed in wet lines; remove using a disconnect clip or disconnect tongs

【Material】 Plastic barb connector, made of high-quality PP（Polypropylene） material

【Connection】Can be connected with 1/2" Hose ID

【Product】Hose barb Thru-Bulk bulkhead fittings，smooth surface and inner wall, durable light and small. Exquisite craftsman makes it safe and reliable.

128 FITTINGS: This 128-piece JIC and ORFS hydraulic cap and plug kit by ZELCAN gives you plenty of fittings in the 6 most commonly needed ORFS and dash sizes: 4, 6, 8, 10, 12, and 16

SUPER BUILD: Our hydraulic fittings are made from 45# structural steel to withstand high heat; they are galvanized to resist corrosion in even the most punishing environments

QUALITY THREADING: These JIC and ORFS caps and plugs have precision-engineered standard threading that allows for smooth installation to hermetically seal your hoses, tubes, and pipes

SIZE - 1/2" Tube OD x 1/2" Tube OD, Compression Tube Fitting mainly consists of a fitting body with a 24 degree tapered hole, a ferrule with a sharp inner edge, and a nut for compression.

MATERIAL - Made of high-quality brass, with strong wear and corrosion resistance, high compressive strength, durability, low magnetic permeability and high temperature ductility.

Use - Suitable for oil, gas, water and other non-corrosive or corrosive pipeline systems, temperature and pressure resistance, good sealing and repeatability, no need for welding and flaring tools, easy disassembly, installation and maintenance, etc.

Product Type: Bulkhead Water Tank Connector, suitable for installation in water tanks, water towers, buckets, fish tanks, etc.

Product material: Made of PVC, strength, durable, will not fade, fall off and crack，These fittings are not allowed be installed for potable water use

Sealing: Threaded connection and embedded gasket form a tight seal, not easy to slip and leak.

Product Type: Bulkhead Water Tank Connector, suitable for installation in water tanks, water towers, buckets, fish tanks, etc.

Product material: Made of ABS, with good impact resistance, heat resistance, will not fade, peel and crack.

Sealing: Threaded connection and embedded gasket form a tight seal, not easy to slip and leak.

Size: 3/8Inch NPT Thread. A cored plug with a hex driver for closing the end of a pipe or fitting.

External thread, used to connect internal threaded pipes or fittings.

The hexagonal head pipe plug is made of brass with an external hexagonal head.

Type: Flare Plug

Tube Size :1/4" OD

Materies: BRASS, Net Weight: 9.5g/PC

Hex nut size: 11/16"

0.73" overall length

Country of Origin: UNITED STATES

【Thread Size】3/8" NPT Female. Note: 3/8" Thread is about 5/8" ID. Please check the product size diagram and select the size you need.

【Material】This pipe cap is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability. Our Pipe Cap 3/8" Female brass fittings don’t deform with Time, unlike Traditional Stainless Steel Thread Bushing or Plastic Pipe Fittings. Package include rubber gasket, it could provide strong seal without slipping.

【Excellent Threads】Female National Pipe Taper (NPT) threads for use with male threaded pipes. The pipe cap is Provided by the Well-Machined Threads and the Relative Softness of the Brass that Enables Tighter Sealing. Easy to Install or Change (Thanks to the hexagonal head that increases the bearing surface when a wrench is applied to the fitting). Doesn’t Leak!

Package Include: 2 pieces 1/2 inch PVC bulkhead water tank connectors with plugs, great for water tanks, rain barrels, aquariums, tubs, pools, etc.

Material: made of high quality PVC, strong and sturdy, will not crack, fade, or peel for long lasting.

Size: 1/2 inch female bulkhead adapter and 1/2 inch male plugs, the outer diameter of the adapter is 1.5 inches, drill a 1.5 inch (38mm)hole to install.

Two piece construction - nut and body

Use with brass tubing

Standard fittings use short nuts

[Size]: Fit 1/2" OD Tube. Thread: 3/4"x 20unef-2A, Dimensions: 22.23mm.

[Quality Materials]: The PLUG is made of high quality 316 stainless steel, which is durable, stable, rust and corrosive resistance and good for long time using.

[Precise Design]: The Plug's shape is designed as hexagon.

Name: 3/8" Tube OD compression fitting

Working Pressure: 2900psi / 20MPa

Temperature Range: -50-450℃ / -58℉ -842℉