Corrects to say third-quarter profit, not second-quarter profit, in paragraph 1

Oct 23 (Reuters) - Pool equipment distributor PoolCorp POOL.O beat third-quarter profit estimates on Thursday, on higher margins helped by tariff-related price increases for its products.

The Covington Louisiana-based company bills itself as the world's largest wholesale distributor of swimming pool supplies and equipment. It also sells irrigation and landscape products.

PoolCorp's vendors had hiked prices in the previous quarter resulting from recent U.S. tariff policies, which saw a trickle down to the company's overall product pricing during the third quarter.

The company's gross profit margin increased to 29.6% from 29.1% a year earlier, while gross profit grew by $12.8 year-over-year.

Its quarterly adjusted profit was $3.39 per share, in line with analysts' estimates according to data compiled by LSEG.

Revenue for the quarter ended September 30 rose 1% from a year ago to $1.45 billion, in line with analysts estimates.

PoolCorp expects a marginal rise in its annual profit forecast on account of a tax benefit.

It now sees earnings per share for the year to be between $10.81 and $11.31, compared with its earlier forecast of between $10.80 and $11.30.

PoolCorp also noted sustained customer demand for its maintenance products and improvement in sales for building materials products.

(Reporting by Aatreyee Dasgupta in Bengaluru; Editing by Krishna Chandra Eluri)

((Aatreyee.Dasgupta@thomsonreuters.com;))