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Description
AirDog A4SPBC191 FP-150-4G Air/Fuel Separation SystemThe AirDog A4SPBC191 FP 150 4G Air Fuel Separation System from GAP is the perfect upgrade for the fuel system on your 2015 2016 GM 6. 6L Duramax LML (Moderate To Extreme). The AirDog functions by drawing fuel from the fuel tank which contains entrained air vapor, particle contaminants, and unidentified amounts of moisture. When the fuel passes through the water separator, water and large particle impurities are taken out of it. The fuel then reaches
The AirDog A4SPBC191 FP-150-4G Air/Fuel Separation System from GAP is the perfect upgrade for the fuel system on your 2015-2016 GM 6.6L Duramax LML (Moderate To Extreme).
The AirDog functions by drawing fuel from the fuel tank which contains entrained air/vapor, particle contaminants, and unidentified amounts of moisture. When the fuel passes through the water separator, water and large particle impurities are taken out of it. The fuel then reaches the fuel pump with the remaining entrained pollutants, air/vapor, and water. While the fuel passes through the fuel filter under positive pressure, the leftover particle pollutants are retained. The entrained air and vapor are separated and added back to the tank. The right pressures are then used to supply the clean fuel to your engine. Each kit includes all the plumbing, hardware, wiring, mounting brackets, and other installation-related parts needed.
If you update the components and performance of your diesel engine, it needs better fuel flow. Higher fuel flows cause more agitation in the fuel tank and vacuum at the fuel pump. This decreases the performance of the engine by allowing more air and moisture to enter the fuel system. Air and vapor can also cause galling, pitting, and tip erosion in injector barrel/plunger assemblies. The AirDog removes air from the fuel to prevent long-term damage to your injectors and improper operation of your engine. The AirDog also provides the fuel pressures and flows required for your diesel engine to run as efficiently as possible.
This system was created by AirDog to remove water, pollutants, vapor, and entrained air from diesel fuel. This lift pump and filter system is necessary to provide a steady flow of clean fuel to your engine.
The 4G motor, which AirDog has been utilizing for years with great success, is included in this AirDog system, along with their customary non-adjustable/high flow return base. AirDog is able to offer a reasonably priced system with a tried-and-true and reliable motor design by maintaining this basic architecture.
The AirDog functions by drawing fuel from the fuel tank which contains entrained air/vapor, particle contaminants, and unidentified amounts of moisture. When the fuel passes through the water separator, water and large particle impurities are taken out of it. The fuel then reaches the fuel pump with the remaining entrained pollutants, air/vapor, and water. While the fuel passes through the fuel filter under positive pressure, the leftover particle pollutants are retained. The entrained air and vapor are separated and added back to the tank. The right pressures are then used to supply the clean fuel to your engine. Each kit includes all the plumbing, hardware, wiring, mounting brackets, and other installation-related parts needed.
If you update the components and performance of your diesel engine, it needs better fuel flow. Higher fuel flows cause more agitation in the fuel tank and vacuum at the fuel pump. This decreases the performance of the engine by allowing more air and moisture to enter the fuel system. Air and vapor can also cause galling, pitting, and tip erosion in injector barrel/plunger assemblies. The AirDog removes air from the fuel to prevent long-term damage to your injectors and improper operation of your engine. The AirDog also provides the fuel pressures and flows required for your diesel engine to run as efficiently as possible.
This system was created by AirDog to remove water, pollutants, vapor, and entrained air from diesel fuel. This lift pump and filter system is necessary to provide a steady flow of clean fuel to your engine.
The 4G motor, which AirDog has been utilizing for years with great success, is included in this AirDog system, along with their customary non-adjustable/high flow return base. AirDog is able to offer a reasonably priced system with a tried-and-true and reliable motor design by maintaining this basic architecture.
Features:
- Eliminates Air & Water From Fuel
- Includes Wiring, Plumbing, & Installation Hardware
- Lifetime Limited Warranty
- 150 GPH Fuel Pump
- Optimized Engine Performance
- Increases Overall Engine Efficiency
- Incorporates Tried-And-True 4G Motor Design
- Faster Throttle Response
WARRANTY INFO:
Limited Lifetime
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Amazon Basics MERV 11 Filters: Solid Performance Without the Premium Price
Pattern Name: 20x20x1, Style: Merv 11
Amazon Basics MERV 11 Filters: Solid Performance Without the Premium Price
I’ve been using these Amazon Basics 20x20x1 MERV 11 filters in my home HVAC system, and overall they’ve been a very dependable option for routine filter changes. I like buying them in a 6-pack because it takes the hassle out of remembering to reorder every couple of months, and the per-filter cost is noticeably lower than the big-name brands at the hardware store.
Installation is straightforward. The actual size fits my return slot properly with no bending or forcing, and airflow has remained strong. With MERV 11, these strike a nice balance for my setup — noticeably better dust and pollen capture than basic MERV 5 or 8 filters, but without putting obvious strain on the system. After about a month of use, the filters clearly show they’re doing their job, collecting a visible layer of dust and fine debris.
A few things to keep in mind. The cardboard frame isn’t as rigid as some premium filters, and they’re a bit thinner than brands like Filtrete. They’ve held up fine for me during normal use, but I wouldn’t try to stretch them much past the recommended replacement interval. Also, if you have an older or low-powered HVAC system, MERV 11 may be more filtration than you need — in that case, a lower MERV option might make more sense.
Bottom line: These Amazon Basics MERV 11 filters are a practical, budget-friendly choice that deliver solid filtration and good airflow for regular HVAC maintenance, as long as you stick to timely replacements and don’t expect premium-brand rigidity.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Great filter at Great price.
Pattern Name: 14x14x1, Style: Merv 8
Prefect fit and works great. We have these on subscription to match our system filter replacement reminder.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️ I can breathe again — and my house says thank you 😂
Pattern Name: 20x20x1, Style: Merv 11
⭐️⭐️⭐️⭐️⭐️ I can breathe again — and my house says thank you 😂
These Amazon Basics MERV 11 air filters have been a game changer for my HVAC system. I installed them and immediately felt like my home went from “dust tornado aftermath” to “spa-day air vibes.” Whether it’s pollen, pet hair, or mystery dust bunnies lingering in the corners, these filters make the air feel noticeably cleaner and fresher.
Installation was about as easy as ripping plastic wrap off a new gadget — pop out the old filter, slide these in, and suddenly the air quality goes from “huh?” to “ahhh.” The electrostatic pleated design grabs everything from sneaky dust motes to pet dander like a champ, and I can actually tell when the AC kicks on that the air feels crisper — in a good way. 🌬️
Between the six count and the solid MERV rating, this was a smart purchase that keeps my HVAC happy and my allergies way more manageable. If you want clean air without the hassle, these filters are a fantastic value and really get the job done. Highly recommend!
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Reviewed in the United States on February 26, 2026
★★★★★ 4
Good, I think.
Pattern Name: 16x25x1, Style: Merv 11
Not my area of expertise but wanted something with a thicker filter and these seem to be doing well. They last 3+ months before discoloration is noticeable to the point you’d think it’s time to put in a new filter. The 6-pack price can’t be beat, truly. Easily installed and used, fits perfect to size and looks clean. Unknown relief on allergies so far since it’s been winter but I’m optimistic.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Better quality that name brand hardware store
Pattern Name: 20x20x1, Style: Merv 11
These are a great value for a multi-pack. They fit perfectly in the vent and you can definitely notice the difference in air quality. It’s much easier to just have a stack of these on hand so I can swap them out regularly without a trip to the store.
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Reviewed in the United States on May 15, 2026