Welcome to CTC Waterworks
Our new website is taking off
We're actively expanding our digital platform with new products, technical resources, and engineering tools. As we build, some pages may be incomplete or under development.
Currently Adding:
- Product specifications and technical data sheets
- Installation guides and engineering resources
- Sizing calculators and application tools
Need information now?
Our engineering team is available to assist with specifications, pricing, and technical support.
Call (509) 901-7476
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.
GNG Series Filter
Budget-friendly inline filtration with ring-lock quick-release head.
Three Cleaning Approaches Available
Supports Manual, Semi-Automatic (BIF & MVC), and Fully Automatic (RAB & AVC) cleaning options.
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
Technical Diagram: GNG ring-lock head design and dimensions
| Item # | Flow (GPM) | Inlet Size | Outlet Size | A (in) | B – Screen Length (in) | C (in) | D (in) | E (in) | F (in) |
|---|---|---|---|---|---|---|---|---|---|
| BA418 | 500 | 4 | 4 | 24 | 24 | 2½ | 8 | 40½ | 7¼ |
| BA417 | 800 | 6 | 6 | 35½ | 36 | 3 | 10 | 52¾ | 8¼ |
| BA419 | 1000 | 8 | 8 | 48 | 48 | 3 | 12 | 64¾ | 9¾ |
| BA416 | 1200 | 8 | 8 | 60 | 60 | 4 | 14 | 76 | 10¾ |
| BA403 | 1500 | 10 | 10 | 90 | 90 | 4 | 14 | 106 | 10¾ |
| BA414 | 1500 | 8 | 8 | 90 | 90 | 4 | 14 | 106 | 10¾ |
| BA579 | 2000 | 10 | 10 | 120 | 120 | 4 | 14 | 135 | 10¾ |
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
Semi-Auto (BIF/MVC)
- •Brush-In-Filter or manual vacuum/brush combo
- •Reduces downtime significantly
- •Minimal power requirements
- •Ideal balance of cost and convenience
Fully 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 MorePrefer stainless at a value price?
BIG-S provides precision filtration in a cost-optimized stainless body with modular ports for flexible installations.
Learn MoreBudget-Friendly Filtration Without Compromise
Get reliable inline filtration at an economical price. Talk to a CTC specialist today to configure your GNG system.