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Aquastat Relays & Accessories

11 Products

Ensure precise temperature control and system efficiency with our selection of aquastat relays and accessories. Designed for hydronic heating systems, these controls regulate boiler temperature, protect equipment, and help maintain consistent comfort. Available in multiple configurations for residential and commercial applications.
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Aquastat Relay, 120 VAC, 180 to 240 deg F, 15 deg F Differential, Vertical Mount
Honeywell
SKUL8148E-1265

$342.20

each
18 In Stock
or - Free Same Day Shipping & Lower Pricing.
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Breaks on Rise Aquastat Controller, 120/240 VAC, 100-240 deg F, 5 to 30 deg F Differential
Honeywell
SKUL4006A-1678

$160.55

each
2 In Stock
or - Free Same Day Shipping & Lower Pricing.
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Breaks on Rise Aquastat Controller, 120/240 VAC, 40-180 deg F, 5 deg F Differential
Honeywell
SKUL4006A-1959

$155.31

each
1 In Stock
or - Free Same Day Shipping & Lower Pricing.
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High and Low limit Aquastat Controller, 120 to 240 VAC/0.25 to 12 VDC, 100 to 240 deg F
Honeywell
SKUL4008A-1015

$171.69

each
4 In Stock
or - Free Same Day Shipping & Lower Pricing.
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High and Low limit Aquastat Controller, 120 to 240 VAC/0.25 to 12 VDC, 65 to 200 deg F, 5.1 to 48 A, 5 to 30 deg F Differential, Horizontal/Vertical/Surface Mount, Import
Honeywell
SKUL6006C-1018

$147.23

each
13 In Stock
or - Free Same Day Shipping & Lower Pricing.
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High and Low Limit Aquastat Controller, 120/240 VAC, 100-240 deg F, 5 to 30 deg F Differential
Honeywell
SKUL6006A-1145

$168.68

each
12 In Stock
or - Free Same Day Shipping & Lower Pricing.
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High and Low Limit Aquastat Relay, 120 VAC, 120-240 deg F, 8 deg F Differential
Honeywell
SKUL8148J-1009

$314.56

each
20 In Stock
or - Free Same Day Shipping & Lower Pricing.
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High Limit Aquastat Relay, 120 VAC, 140-240 deg F, 8 deg F Differential
Honeywell
SKUL8148A-1017

$255.59

each
10 In Stock
or - Free Same Day Shipping & Lower Pricing.
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L4006E1067/U Breaks on Rise Aquastat Controller, 120 to 240 VAC/0.25 to 12 VDC, 130 to 270 deg F, 5.1 to 48 A, Horizontal/Vertical Mount
Honeywell
SKUL4006E-1067

$227.25

each
3 In Stock
or - Free Same Day Shipping & Lower Pricing.
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L4006H-1004 Same As L4006E1091 Except Strap On Mounting Well. Well. Strap On Mounting.
Honeywell
SKUL4006H-1004

$235.65

each
Out of Stock
or - Free Same Day Shipping & Lower Pricing.
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Pressuretrol Pressure Controller 1 to 5 psi Differential
Honeywell
SKUPA404A-1033

$203.14

each
3 In Stock
or - Free Same Day Shipping & Lower Pricing.