Scientific Anglers
Scientific Anglers Sonar Saltwater Intermediate Fly Line
Scientific Anglers Sonar Saltwater Intermediate Fly Line
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DESCRIPTION & FEATURES
DESCRIPTION & FEATURES
SLOW-SINKING FLY LINE FOR SALT WATER
It’s not very often you’ll need to fish topwater flies in the salt. That’s where an intermediate line comes in handy. The SONAR Saltwater Intermediate fly line features a slow-sinking clear head that cuts through the surface and provides an amazing amount of stealth for those wary fish cruising the flats. From redfish and bonefish to permit and tarpon, give yourself an edge that fish won’t be able to see.
- Slow sink rate gets flies just below the surface
- Engineered for use in salt water
- Clear head for stealthy presentations
- Tropi-Core technology for tropical climates
- Sink Rate: 1.25 ips (Intermediate)
- SA ID – SA SONAR SWTI WF X I (X = line weight)
TAPER DIAGRAM
APPLICATIONS
SPECIFICATIONS
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* Grain weight for the first 30′




At Spawn Fly Fish, we’re proud to carry a handpicked selection of products for anglers of all levels. Explore top brands like Sage, Redington, Douglas LRS, Ross Reels, and more. Whether you’re tying with Shrimp Eyes, crafting with Unreal Dubbing, or looking for Loctite Super Glue Extra Time Control to secure your creations, you’ll find everything you need here.We also stock a wide range of fly tying materials, fly rods, and fly reels—including favorites like Tibor Fly Reels, Lamson Fly Reels, and Redington Fly Reels. For complete guides on where and how to use your new gear, check out our Fly Fishing Guide to Washington or browse our blog or YouTube channel for in-depth product tips and tutorials
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FREE SHIPPING
Free shipping on orders over $49 to the contiguous US
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FREE RETURNS
We stand behind our products. Return shipping is free on all returns shipped from within the United States
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2% PLEDGE
2% of all Spawn profits are donated to conservation groups. This has been true since our 1st day of business