KastKing

KastKing HyperSeal Waterproof Tackle Box

Tackle Box
2
Polyester
Orange

4.7/ 5 on Amazon581Amazon ratings1,000+bought last month4.3ProductDome score

Better rated than 79%
More reviewed than 58%

High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology

Best forBuy if your tackle trays are the 3600 or 3700 standard size and you want a waterproof case for them.

This KastKing case seals against water and slots in standard 3600/3700 trays, a fit for anglers who already own those tray sizes.

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ProductDome scorecard

How it ranks among the 66 tackle boxes we track

4.3/ 5ProductDome scoreHigh confidence

Owner satisfaction · 56% of scorecategory median 4.6★4.7

4.7★ across 581 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 429 ratings3.5

581 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.1

1,000+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 66 tackle boxes we track - how the scorecard works · full tackle boxes data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

Two waterproof tackle cases from KastKing's HyperSeal line, sized to hold 3600 and 3700 style tackle trays and finished in orange.

Tackle boxes marketed around 3600/3700 tray compatibility follow a common sizing standard, letting anglers swap in trays built to those dimensions from other brands too. A sealed closure keeps stored lures and hooks dry and rust-free between trips, which matters most for anglers who store gear in a boat or leave it exposed to weather.

Compatible with 3600 and 3700 size tackle trays
Waterproof HyperSeal closure
Two piece set
Orange colorway

Who it's for

Suits anglers who already use 3600 or 3700 size tackle trays and want a sealed case to keep them dry and organized. Less useful for anyone using a different tray size standard.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Fits standard 3600 and 3700 size trays
Sealed design guards against moisture and rust
Sold as a two piece set

What to check first

Only fits trays built to 3600/3700 dimensions
Trays themselves may be sold separately

Performance notes

The HyperSeal design relies on a gasket closure to keep water out of the case, which protects hooks and lures from rust and keeps trays from sliding during transport. How well it performs depends on the gasket staying clean and the latch fully closing on each use.

Specifications

Brand	KastKing
Pieces	2
Material	Polyester
Color	Orange

How it compares

This product against the closest alternatives we track in tackle boxes.

Product	Amazon rating	Ratings	ProductDome score
KastKing HyperSeal Waterproof Tackle BoxThis product	4.7 / 5	581	4.3 / 5
Plano 620206 Tackle BoxPlano	4.6 / 5	9,200	4.5 / 5
Flambeau 4007 Tackle BoxFlambeau	4.5 / 5	10,700	4.5 / 5
PLUSINNO MD-FL137-US Tackle BoxPLUSINNO	4.6 / 5	2,300	4.5 / 5
YakAttack BLP-PRO-13X13-BG Tackle BoxYakAttack	4.7 / 5	862	4.2 / 5

Frequently asked

Questions about the KastKing tackle boxes

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What tray sizes fit the KastKing HyperSeal box?

It is built for the standard 3600 and 3700 size tackle trays.

Is the case actually waterproof?

KastKing markets it under the HyperSeal name with a sealed closure meant to keep water out.

How many boxes come in the set?

The listing is for a two-piece set.