The KastKing Hyperseal Waterproof Fishing Tackle Box is a popular choice among anglers for its durability, waterproof design, and secure storage. It comes in two sizes: 3600 and 3700, which refer to the standard Plano-style box dimensions. Here’s a breakdown of its features and differences:

Key Features:
1. 100% Waterproof & Airtight
– Features a Hyperseal gasket system that keeps water, dust, and moisture out, even when submerged.
– Ideal for kayak fishing, saltwater use, or wet conditions.

2. Durable Construction

Kastking Hyperseal Waterproof Fishing Tackle Box, Waterproof 3600 and 3700

– Made from high-impact ABS plastic for toughness.
– Rustproof stainless steel hinges & latches for long-lasting performance.

3. Secure Closure
– Dual-locking latches ensure the box stays sealed even if dropped.
– Pressure release valve prevents vacuum lock when opening.

4. Modular & Organized Storage
– Removable dividers allow customizable compartment layouts.
– Fits standard Plano 3600/3700 trays (sold separately if needed).

5. Floats in Water
– Designed to stay afloat if accidentally dropped overboard.

6. Non-Slip Rubber Feet
– Prevents sliding on boat decks or kayaks.

3600 vs. 3700 Comparison
| Feature | 3600 Size | 3700 Size |
|——————|———————–|———————–|
| Dimensions | ~14″ x 7.5″ x 2″ | ~14″ x 9″ x 2″ |
| Capacity | Holds standard 3600 trays (smaller compartments) | Fits 3700 trays (larger compartments for bigger lures/tackle) |
| Best For | Smaller tackle, hooks, jigs, soft plastics | Larger lures, swimbaits, hard baits, bulkier gear |

Pros & Cons
✅ Pros:
– Excellent waterproofing for harsh conditions.
– Rugged and built to last.
– Compatible with Plano-style trays.
– Floats and resists corrosion.

❌ Cons:
– Slightly heavier than non-waterproof boxes.
– Higher price than standard tackle boxes.

Who Should Buy It?
– Kayak anglers who need waterproof storage.
– Saltwater fishermen dealing with corrosion.
– Bass and offshore anglers who want secure lure protection.

Final Verdict:
The KastKing Hyperseal is a top-tier waterproof tackle box, especially for anglers who fish in wet or harsh environments. Choose the 3600 for compact storage or the 3700 for larger lures and gear.

Would you like recommendations on accessories (like trays) or alternatives?