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For homeowners

Types of faucet: which one fits your bathroom sink?

Choose Single-hole faucet for a sink with a single hole, which can take any faucet designed for a single hole mount (Moen); Centerset faucet for a three-hole sink that measures 4 inches from the center of the hot handle to the center of the cold handle (Moen); Widespread faucet for a three-hole sink that measures anywhere between 8 and 16 inches from the center of the hot handle to the center of the cold handle, the layout Moen calls widespread.

The right choice depends on how many holes your sink has and how far apart the hot and cold handle holes are, center to center.

How we know: By InstaBids editorial team with AI research agents. · Sources read: 17 October 2026 · Updated 27 October 2026

Moen: "You may need to go underneath the sink or remove the old faucet to see exactly how many holes your current sink has."
TypeBest forMain advantagesMain drawbacks
Single-hole fauceta sink with a single hole, which can take any faucet designed for a single hole mount (Moen)Moen lists a single-hole faucet with an escutcheon plate among its examples for a three-hole, 4-inch sinkMoen: on a single-hole sink "you will want a faucet that does not require an escutcheon plate"; Moen: "it is always best to check the specification sheet on whether or not it can be installed without the escutcheon plate"
Centerset fauceta three-hole sink that measures 4 inches from the center of the hot handle to the center of the cold handle (Moen)Moen shows centerset faucets with two handles and with one handleno official source names one
Widespread fauceta three-hole sink that measures anywhere between 8 and 16 inches from the center of the hot handle to the center of the cold handle, the layout Moen calls widespreadno official source names oneMoen: a widespread faucet cannot fit a 4-inch centerset hole configuration

InstaBids is an AI-run marketplace for homeowners and property managers: describe a home job once, by chat or through your own AI assistant, add photos, and get multiple written quotes on the same scope, compared apples to apples, with no phone calls or home visits before you pick.

Post your job on InstaBids, and contractors can bid in writing on one written scope.

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InstaBids assistantAI · builds your written scope with you

What bathroom faucet replacement job do you need done in your home? Describe it once to start your written scope.

Start from a common job
You choose who gets your number
Or send it from your own AIChatGPTClaudeGrokGeminiMore ways
  1. Describe it onceBy chat, or through your own AI assistant, and add photos.
  2. Post it and send itContractors bid in writing on that scope.
  3. Compare line by lineEvery quote is written against the same scope.
  4. You chooseContact details stay hidden until you pick and they confirm.
InstaBids

For your AI assistant

MCP connector · REST API · plain HTML

Hand any of these to your assistant and it can help you write this job's request; you send the request yourself. What you type in the job box above goes into the prompt these buttons carry. The connector asks you to sign in to your InstaBids account the first time.

  • MCP connector URLhttps://instabids.ai/api/agent/mcp
  • Agent API (OpenAPI)https://instabids.ai/openapi.json
  • Start-request linkhttps://instabids.ai/intake?from=options-faucet&utm_source=us&utm_medium=page&utm_campaign=options&page_type=options#job=bathroom%20faucet%20replacement
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Every page is plain HTML. Steps for every assistant: add to your assistant.

If your priority is...
PriorityChoose
your sink has a single holeSingle-hole faucet
your sink's three holes measure 4 inches from the center of the hot handle to the center of the cold handleCenterset faucet
your sink's three holes measure anywhere between 8 and 16 inches from the center of the hot handle to the center of the cold handleWidespread faucet

Get written bids

Contractors who take part bid on one written scope card, so nobody visits before you see any prices.

The contractor you pick may visit once before settling the final price against the percentage the bid stated.

Contractors in your trade see the scope card and your 5-digit ZIP code.

Contact details stay hidden until the homeowner picks a contractor and they confirm the connection.

Homeowners pay InstaBids nothing.

Sources for the facts on this page

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