Netafim Self Piercing Pressure Compensating Dripper W/ Check Valve ( Red / 2.0 GPH ) – 25 Pack

The Netafim Self-Piercing Pressure Compensating Dripper with Check Valve (Red, 2.0 GPH) is a tool-free emitter designed for adding precise drip points to blank poly tubing or existing PC poly dripline. The self-piercing barb pushes directly through the tubing sidewall without a punch or insertion tool, and the integrated check valve prevents low-head drainage while the pressure compensating mechanism delivers a consistent 2.0 GPH across a wide operating range of 10.15–58 PSI. Sold in a 25-pack.

Netafim Self-Piercing Dripper Specifications

The table below lists the key technical parameters for the Netafim Self-Piercing Pressure Compensating Dripper with Check Valve (Red / 2.0 GPH) as published in manufacturer documentation and distributor data. All values are sourced from the canonical product listing.

Specification	Value
Brand	Netafim
Color / Model	Red / 2.0 GPH
Flow Rate	2.0 GPH (gallons per hour)
Operating Pressure Range	10.15 PSI – 58 PSI
Maximum Operating Pressure	58 PSI
Check Valve Hold-Back Pressure	1.74 PSI (~4 ft of head)
Barbed Inlet Diameter	0.160″ – 0.170″
Barbed Outlet Diameter	0.160″
Minimum Filtration Required	120 mesh
Installation Type	Surface or sub-surface
Weight (per dripper)	0.0992 lb
Pack Quantity	25 drippers
Supplier SKU	SPCV20-25

Why Choose the Netafim Self-Piercing Pressure Compensating Dripper

These drippers are useful in situations where a standard barbed emitter falls short — specifically when you need to add a drip point quickly, maintain even output across a zone with varying elevation or pressure, and protect the system from drainage when the pump shuts off. Below are the distinguishing features based on the manufacturer’s published specifications.

• No tools required for installation. The self-piercing barb has a sharp tip that pushes directly through the sidewall of standard poly tubing. There is no need for a separate hole punch or barb insertion tool, which saves time when adding multiple drip points to a run of blank tubing.
• Consistent output across a wide pressure range. The pressure compensating design delivers the same 2.0 GPH flow rate anywhere between 10.15 PSI and 58 PSI. Plants at the far end of a long lateral — where pressure typically drops — receive the same water volume as plants close to the header.
• Internal check valve prevents low-head drainage. The check valve holds back 1.74 PSI (approximately 4 feet of hydraulic head). When the irrigation pump stops, water held in the lateral under that threshold stays in the tubing rather than draining out through the emitters, preventing puddling at low points and overwatering of plants near the end of the line.
• TurboNet self-cleaning flow path. Netafim’s TurboNet design routes water through a turbulent path inside the dripper body, which dislodges particles and sediment during each irrigation cycle. This reduces clogging and extends the service life of the emitter without requiring manual cleaning.
• Anti-siphon protection. When the system shuts down, the anti-siphon mechanism prevents contaminants, soil particles, and root exudates from being drawn back into the dripper. This is relevant for sub-surface installations where the emitter tip is in direct contact with the growing medium.
• Works for surface and sub-surface use. Because of the anti-siphon feature and check valve, the emitter can be buried in the growing medium without the risk of back-contamination or low-head drainage that typically affects drippers designed only for surface placement.

Best Uses for the Netafim Self-Piercing Pressure Compensating Dripper

These drippers are best suited to situations where quick spot-placement of emitters is needed and where pressure variation across a zone would otherwise cause uneven watering. The following use cases are grounded in the manufacturer’s published feature list.

• Extending or modifying blank poly tubing runs. If you have a length of poly tubing without pre-installed emitters, these drippers let you add flow points exactly where you want them without cutting or refitting the line. Useful for retrofitting existing layouts or adding plants to a zone mid-season.
• Supplementing PC poly dripline. In situations where the factory-installed emitters in pre-made dripline are too far apart for certain plants, these self-piercing drippers let you insert additional emitters between existing ones without disrupting the run.
• Wide or irregularly spaced plantings. Because each emitter is placed individually, spacing can be arbitrary — useful for tree rows, orchard understory, or large containers where standard dripline spacing does not match plant positions.
• Container and hanging basket irrigation. The 2.0 GPH flow rate and check valve make these a straightforward choice for containers, hanging baskets, and flower boxes where you want a defined flow per container and no drain-back when the pump stops.
• Tree watering and landscape irrigation. The self-piercing feature and pressure compensation make these practical for landscape drip systems fed from a municipal or tank supply with variable pressure, where consistent delivery to each tree or shrub matters.
• Sub-surface drip in growing media. The anti-siphon design makes these suitable for burial in coco, rockwool slabs, or soil-based media, where direct contact with the root zone is preferred to reduce evaporation from the surface.

For systems that require precise water quality control upstream of the drip zone, a 150-mesh or finer inline filter at the head of the lateral will protect these emitters, which require at minimum 120-mesh filtration.

Netafim Self-Piercing Dripper vs Similar Pressure Compensating Drippers

When choosing between pressure compensating drippers for a poly tubing drip system, the main variables to evaluate are the installation method (punched vs. self-piercing), check valve inclusion, self-cleaning design, and operating pressure range. The table below compares the key properties of these Netafim self-piercing drippers against the typical specifications of standard barbed pressure compensating emitters in the same flow-rate class.

Feature	Netafim Self-Piercing PC Dripper (Red / 2.0 GPH)	Standard Barbed PC Dripper (typical)
Installation Method	Self-piercing barb — no punch tool needed	Requires separate hole punch before insertion
Check Valve	Included (1.74 PSI hold-back)	Often sold separately or as an upgrade
Self-Cleaning	TurboNet continuous self-cleaning	Varies by model; not always included
Anti-Siphon	Yes — prevents back-contamination	Not standard on most basic PC drippers
Operating Pressure Range	10.15 – 58 PSI	Typically 15 – 45 PSI
Sub-surface Suitability	Yes (anti-siphon design)	Not recommended without anti-siphon

The self-piercing feature is the primary practical advantage of this dripper over standard barbed emitters. For large installs where you’re adding many drip points to plain tubing, eliminating the hole-punch step reduces labor noticeably. For existing systems that already have punched holes, standard barbed PC drippers may be interchangeable, but the built-in check valve and TurboNet path remain meaningful differentiators.

Compatibility

These drippers are designed for use with standard poly tubing sidewalls. The following notes on compatibility are derived from the published inlet/outlet specifications and installation guidelines in the manufacturer’s documentation.

• Tubing compatibility. The self-piercing barb is dimensioned for poly tubing with an inner wall that accommodates a 0.160″–0.170″ inlet barb. This covers the standard range of blank poly drip tubing (typically 1/4″ or 1/2″ poly). Confirm your tubing wall gauge before purchasing for sub-surface buried runs where re-placement is difficult.
• PC dripline add-ons. These drippers can be inserted into pre-manufactured pressure compensating poly dripline to add emitters between factory-installed positions. This is useful for increasing density in certain planting zones without replacing the line.
• Filtration requirement. The minimum required filtration upstream of these drippers is 120 mesh. Running without adequate filtration will accelerate clogging of the TurboNet flow path and may void the expected service life. A 200-mesh inline screen filter provides a margin above the minimum and is a reasonable choice for systems using nutrient solutions or water with suspended solids.
• Pressure source. The compensating range is 10.15–58 PSI, which is compatible with most municipal water supplies, pressure-regulated tank systems, and pump-driven hydroponic reservoir setups. Systems operating below 10 PSI will not achieve regulated flow, and flow accuracy will degrade.
• Pump and reservoir systems. These drippers work alongside reservoir-fed drip systems. For water chemistry monitoring in reservoir-based setups, pairing with an active aqua air pump to maintain dissolved oxygen in the reservoir helps prevent biofilm buildup that could otherwise reach the emitters.

Usage Guidelines

The following operating guidelines are drawn from the published specifications for this dripper. They apply to any installation using these emitters whether surface-mounted or sub-surface.

• Maintain operating pressure within the compensating range. Flow is regulated at 2.0 GPH only when pressure at the emitter is between 10.15 PSI and 58 PSI. If you are running a long lateral with significant pressure drop, calculate the end-of-line pressure to confirm it stays above 10.15 PSI. If it does not, consider reducing lateral length or increasing tubing diameter.
• Use adequate upstream filtration. Install a filter with 120 mesh or finer upstream of any zone using these drippers. Replace or clean filter screens on a regular schedule appropriate to your water quality — more frequently if using nutrient-rich solutions or water with visible particulates.
• Check valve and drainage behavior. The internal check valve holds back 1.74 PSI, meaning the system needs to drop below approximately 4 feet of hydraulic head at the emitter before drainage begins. In sloped or multi-elevation installations, confirm the lowest emitters are within this head tolerance to avoid unintended drainage.
• Anti-siphon function and sub-surface use. For sub-surface installations, ensure the system pump and controller are set up to produce a clean shutoff rather than a slow pressure decline, so the anti-siphon mechanism can function correctly. A slow decay in line pressure is more likely to allow partial back-draw before the anti-siphon activates.
• Flow rate per zone. Each dripper delivers 2.0 GPH. When planning zone run times, multiply the number of drippers in the zone by 2.0 to get the total flow rate, then calculate the volume to be delivered per irrigation event to determine run duration. Adjust based on plant size, growing medium, and drainage observations.

How to Install the Netafim Self-Piercing Dripper

The self-piercing installation process requires no hole punch. The steps below describe adding these drippers to blank poly tubing or existing PC dripline.

1. Depressurize the line before inserting drippers. Shut off the water supply and allow pressure to bleed from the tubing. Inserting a barbed dripper into a pressurized line risks incomplete seating and potential for the dripper to eject once flow resumes.
2. Mark emitter positions on the tubing. Use a marker or tape to indicate where each dripper will be inserted. Space positions according to your plant layout. For containers, position each mark directly above the target pot.
3. Insert the self-piercing barb. Hold the tubing steady on a firm surface and push the sharp barbed inlet of the dripper straight into the tubing wall with firm, even pressure. The barb should seat fully until the dripper body is flush against the tubing. Do not twist — push straight through.
4. Attach the outlet tubing if used. If you are running 1/4″ distribution tubing from the 0.160″ outlet to the plant, connect it now. For direct surface application without distribution tubing, no outlet connection is needed.
5. Verify all emitters are seated before re-pressurizing. Walk the line and confirm each dripper is fully inserted with no gaps between the barb and the tubing wall. A partial insertion will leak at the seal point under pressure.
6. Re-pressurize and observe for leaks. Turn the water supply back on slowly and observe each insertion point for drips or weeping around the barb. If a leak is present, shut off the supply, remove the dripper, and re-insert into an adjacent spot — a self-piercing barb that has already been partially extracted will not re-seal at the same hole.
7. Check flow at each emitter. With the system running at operating pressure, confirm that all drippers are delivering flow. Confirm that emitters at the end of the lateral are flowing at a similar rate to those at the beginning — this validates that operating pressure at the end of the line is within the 10.15–58 PSI compensating range.

Sources & Further Reading