Home
Marine Equipment
Plumbing
Seacocks, Valves & Regulators
Seacocks Valves & Regulators - Check Valve
Rule Check Valve f/360/500 Bilge 1" Straight Ports

Rule Check Valve f/360/500 Bilge 1" Straight Ports

Name: Rule Check Valve f/360/500 Bilge 1" Straight Ports
Brand: Rule
SKU: RUL-1221R
Price: 9.99 USD
Availability: InStock

SKU: RUL-1221R | Manuf. Code: 1221R

$9.99 USD

Unit price /

Unavailable

Price Match Guarantee

Our Best Price Guarantee

We Price Match against authorized dealers only, based on the total order cost (product + shipping).
No auction sites
No unauthorized sellers
Item must be identical, new, and in stock

Found it cheaper? Chat with us to request a Price Match.

Qty

Questions? Chat with our Tech Team

Backed by MAURIPRO Support.

Simple 30-Day Returns.

Simple 30-Day Returns

We offer returns within 30 days of delivery for your peace of mind.

0â€“15 days: Free returns or exchanges
16â€“30 days: Returns accepted with a 20% restocking fee
Returns after 30 days are not accepted.
Request a Return Authorization (RA#) prior to shipping.
Return shipping is the customerâ€™s responsibility.

International Shipping — Duties & VAT Not Included

International Shipping — How It Works

Orders ship from our US warehouse worldwide. Prices shown are in USD and do not include import duties, VAT, GST, customs fees, or any taxes charged by your country on arrival.

These charges are set by your local customs authority and are the buyer's responsibility, payable to the carrier (DHL, FedEx, UPS, or your national postal service) at the time of delivery.

Rates vary by country and product category. For an estimate, check your country's customs authority website or contact us before ordering.

Questions? Chat with our Tech Team.

Rule Check Valve f/360/500 Bilge 1" Straight Ports

$9.99 USD

Unit price /

Unavailable

View details

DESCRIPTION

The Rule Check Valve for 360 and 500 GPH bilge pumps features 1-inch straight ports to prevent water backflow. This essential component ensures that water doesn't drain back into your bilge once the pump shuts off, improving the efficiency of your drainage system and keeping your boat drier.

FEATURES

Check valve for 360/500 bilge pumps
1" straight port connection design
Prevents backflow and water damage
Reliable marine pump system protection

TECHNICAL INFORMATION

Description	Imperial	Metric
Bearings	6+1	6+1
Weight	14.0 oz	396.9 g
Size	1 in	25.4 mm

{"id":10098403934514,"title":"Rule Check Valve f\/360\/500 Bilge 1\" Straight Ports","handle":"rul-1221r","description":"\u003cp\u003eThe Rule Check Valve for 360 and 500 GPH bilge pumps features 1-inch straight ports to prevent water backflow. This essential component ensures that water doesn't drain back into your bilge once the pump shuts off, improving the efficiency of your drainage system and keeping your boat drier.\u003c\/p\u003e","published_at":"2026-01-29T10:26:32-05:00","created_at":"2026-01-29T10:26:31-05:00","vendor":"Rule","type":"","tags":["UPO7A0SLV505"],"price":999,"price_min":999,"price_max":999,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50877397106994,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"RUL-1221R","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Rule Check Valve f\/360\/500 Bilge 1\" Straight Ports","public_title":null,"options":["Default Title"],"price":999,"weight":59,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.mauripro.com\/cdn\/shop\/files\/101799XL_a29b990b-6c26-489d-8aa6-7e2aa1af3454.jpg?v=1769700398"],"featured_image":"\/\/www.mauripro.com\/cdn\/shop\/files\/101799XL_a29b990b-6c26-489d-8aa6-7e2aa1af3454.jpg?v=1769700398","options":["Title"],"media":[{"alt":null,"id":43107796582706,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/www.mauripro.com\/cdn\/shop\/files\/101799XL_a29b990b-6c26-489d-8aa6-7e2aa1af3454.jpg?v=1769700398"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/www.mauripro.com\/cdn\/shop\/files\/101799XL_a29b990b-6c26-489d-8aa6-7e2aa1af3454.jpg?v=1769700398","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThe Rule Check Valve for 360 and 500 GPH bilge pumps features 1-inch straight ports to prevent water backflow. This essential component ensures that water doesn't drain back into your bilge once the pump shuts off, improving the efficiency of your drainage system and keeping your boat drier.\u003c\/p\u003e"}

{ "product_id": 10098403934514, "variant_id" : 50877397106994, "variant_available" : true, "inventory_quantity" : 0, "inventory_management" : "", "inventory_policy" : "continue", "image": "//www.mauripro.com/cdn/shop/files/101799XL_a29b990b-6c26-489d-8aa6-7e2aa1af3454.jpg?v=1769700398", "price": "999", "title": "Default Title", "value": "Default Title" }

{ "product_id": "MTAwOTg0MDM5MzQ1MTQ=", "variant_id" : "NTA4NzczOTcxMDY5OTQ=", "variant_available" : "dHJ1ZQ==", "inventory_quantity" : "MA==", "inventory_management" :"", "inventory_policy" : "Y29udGludWU=", "image":"JTJGJTJGd3d3Lm1hdXJpcHJvLmNvbSUyRmNkbiUyRnNob3AlMkZmaWxlcyUyRjEwMTc5OVhMX2EyOWI5OTBiLTZjMjYtNDg5ZC04YWE2LTdlMmFhMWFmMzQ1NC5qcGclM0Z2JTNEMTc2OTcwMDM5OA==", "price": "OTk5", "title": "RGVmYXVsdCtUaXRsZQ==", "value": "RGVmYXVsdCtUaXRsZQ==", "variant_options": {"Title": "RGVmYXVsdCtUaXRsZQ==" } }

Rule Check Valve f/360/500 Bilge 1" Straight Ports

Simple 30-Day Returns

International Shipping — How It Works

DESCRIPTION

FEATURES

TECHNICAL INFORMATION

Your cart

GENERAL INFORMATION

RESOURCES

CORPORATE

Choose options