Investors seek growth stocks to capitalize on above-average growth in financials that help these securities grab the market's attention and produce exceptional returns. However, it isn't easy to find a great growth stock.

In addition to volatility, these stocks carry above-average risk by their very nature. Also, one could end up losing from a stock whose growth story is actually over or nearing its end.

However, it's pretty easy to find cutting-edge growth stocks with the help of the Zacks Growth Style Score (part of the Zacks Style Scores system), which looks beyond the traditional growth attributes to analyze a company's real growth prospects.

Our proprietary system currently recommends Parker-Hannifin (PH) as one such stock. This company not only has a favorable Growth Score, but also carries a top Zacks Rank.

Research shows that stocks carrying the best growth features consistently beat the market. And for stocks that have a combination of a Growth Score of A or B and a Zacks Rank #1 (Strong Buy) or 2 (Buy), returns are even better.

Here are three of the most important factors that make the stock of this maker of motion and control products a great growth pick right now.

Earnings Growth

Arguably nothing is more important than earnings growth, as surging profit levels is what most investors are after. For growth investors, double-digit earnings growth is highly preferable, as it is often perceived as an indication of strong prospects (and stock price gains) for the company under consideration.

While the historical EPS growth rate for Parker-Hannifin is 21.5%, investors should actually focus on the projected growth. The company's EPS is expected to grow 4.7% this year, crushing the industry average, which calls for EPS growth of 4.5%.

Cash Flow Growth

While cash is the lifeblood of any business, higher-than-average cash flow growth is more important and beneficial for growth-oriented companies than for mature companies. That's because, growth in cash flow enables these companies to expand their businesses without depending on expensive outside funds.

Right now, year-over-year cash flow growth for Parker-Hannifin is 17.3%, which is higher than many of its peers. In fact, the rate compares to the industry average of 10.2%.

While investors should actually consider the current cash flow growth, it's worth taking a look at the historical rate too for putting the current reading into proper perspective. The company's annualized cash flow growth rate has been 16.3% over the past 3-5 years versus the industry average of 8.4%.