Stay Updated With New Products + Industry Insights

📖

FREE "Better Water Book: A Holistic Guide to pH Management, Soil Health, and Sustainable Agriculture"

Complete guide to pH management, soil biology, and sustainable agriculture with case studies, technical information, and proven strategies - instant download when you subscribe!

By subscribing, you agree to receive marketing emails from CTC Waterworks. You can unsubscribe at any time.

GNG Series In-Line Filters (Economy)

Budget-friendly in-line filtration with ring-lock quick-release head—painted mild-steel body in CTC blue.

GNG filters deliver reliable inline filtration at an economical price point. The ring-lock quick-release head design enables fast screen removal and cleaning without tools, while the painted mild-steel construction keeps upfront costs low.

Representative image — GNG uses ring-lock head

Why Choose GNG?

Low Upfront Cost

Simplified body and ring-lock head design reduce manufacturing complexity and cost.

Quick Maintenance

Quick-release clamp on ring-lock head for fast screen removal and cleaning.

Painted Mild Steel

Blue epoxy finish matching the BIG line for durable corrosion resistance.

Engineering Note

Ring-lock head requires pressure to complete the seal; do not use on suction-side service. GNG filters are designed exclusively for pressurized applications.

GNG Series (Non-Gasketed) — Specifications

Catalog-exact GNG specifications

Item #Flow (GPM)Inlet SizeOutlet SizeA (in)B – Screen Length (in)C (in)D (in)E (in)F (in)
BA4185004424242½840½7¼
BA4178006635½3631052¾8¼
BA419100088484831264¾9¾
BA41612008860604147610¾
BA40315001010909041410610¾
BA414150088909041410610¾
BA5792000101012012041413510¾

B = Screen Length. All units ship with universal ports. Keep units and fractions exactly as shown.

Screen Options

Perforated Round-Hole

  • •High open area for maximum flow
  • •Ideal for coarse filtration and high solids
  • •Available in standard increments

Woven Mesh

  • •Fine filtration for drip and micro-irrigation
  • •Standard mesh sizes (20–100)
  • •Precision control of particle size

Cleaning Options

Choose the cleaning method that best fits your operation, water quality, and maintenance preferences.

Manual Cleaning

  • •Lowest upfront cost
  • •Simple operation with no power requirements
  • •Requires shutdown and manual screen removal
  • •Best for low solids and infrequent cleaning needs
RECOMMENDED

Semi-Auto (BIF/MVC)

  • •Brush-In-Filter or manual vacuum/brush combo
  • •Reduces downtime significantly
  • •Minimal power requirements
  • •Ideal balance of cost and convenience

Automatic (RAB/AVC)

  • •Self-cleaning brush or vacuum/brush system
  • •Continuous service without interruption
  • •Ideal for high solids and remote locations
  • •Automated operation with minimal oversight

Explore Alternatives

Not quite the right fit? Check out these related products.

Want precision gasket-sealed filtration?

BIG Series offers precision, gasket-sealed in-line filters with optional automation upgrades and leak-free performance.

Learn More

Prefer stainless at a value price?

BIG-S provides precision filtration in a cost-optimized stainless body with modular ports for flexible installations.

Learn More

Budget-Friendly Filtration Without Compromise

Get reliable inline filtration at an economical price. Talk to a CTC specialist today to configure your GNG system.